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United States · Multi-region weather view

Columbia Gorge

Vineyards follow the Columbia River on both sides of the Oregon–Washington border.

Rain falls off quickly from west to east while wind and river influence remain important.

Climate comparisons use the 1991–2020 combined regional record · updated through Aug 20, 2026.

Current conditions

Observations through Aug 31, 2026 · 00:30 UTC

Temperature27.0°C
Dew Point6.0°C
Relative Humidity26%
24h Rainfall0.2 mmmodeled IFS total through Aug 29
NWS station average · 1 station

Temperature, dew point, humidity, and wind are averaged using the same locations and weights as the historical record. The current temperature uses 100% of the configured regional weight.

  • KDLS — The Dalles Municipal Airport · 100% regional weight

NOAA National Weather Service observations. Station readings are point measurements and may not represent every vineyard elevation or exposure.

Vintage explorer

Compare this vintage →

Significantly warmer and significantly drier than normal.

Mean temperature16.2°C
Temperature anomaly+1.7°Cvs 1991-2020
Growing degree days1397base 10°C
Hot days31≥ 32°C

What stood out in 2015

Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation.

Warmer growing season · High confidence

Mean growing-season temperature was +1.7°C versus the 1991–2020 baseline.

Warm weather can speed ripening and leave grapes with less acidity.

More hot days than usual · High confidence

There were 31 days at or above 32°C—+18 days versus baseline.

Repeated hot days can speed ripening and put vines under stress.

Drier than baseline · Moderate confidence

Growing-season precipitation was 128 mm below the 1991–2020 baseline.

Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation.

Spring freeze recorded · Moderate confidence

The regional record had 2 spring day(s) at or below -2°C.

A freeze after budbreak can damage new growth and reduce the crop.

How unusual was 2015?

The ranking compares vintages that meet the data-coverage threshold and use the same source, regional rules, and 1991-2020 baseline.

Growing-season temperature

Warmest of 35 vintages Warmer than every other vintage 16.2°C

Growing-season rainfall

2nd driest of 35 vintages Drier than 33 of 34 other vintages 196.1 mm

Heat accumulation

Highest of 35 vintages Higher than every other vintage 1397 GDD

Hot days

Most of 35 vintages More than every other vintage 31 days

2015 month by month

Compared with 1991–2020

Follow heat accumulation, rainfall, frost exposure, and the region’s growing and harvest windows in calendar order.

Frost watch Growing season Harvest window
  1. 1–31
    Frost watch

    Heat accumulation

    2015 0 GDD
    Typical 3 GDD

    Rainfall

    2015 104.4 mm
    Typical 118.5 mm
    2015 freezing days
    4
    Typical
    11.5

    Close to the typical monthly pattern.

  2. 1–30
    Frost watchGrowing season

    Heat accumulation

    2015 23 GDD
    Typical 19 GDD

    Rainfall

    2015 43.9 mm
    Typical 84.9 mm
    2015 freezing days
    2
    Typical
    3.9

    Drier than the typical month.

  3. 1–31
    Frost watchGrowing season

    Heat accumulation

    2015 130 GDD
    Typical 92 GDD

    Rainfall

    2015 26.3 mm
    Typical 57.5 mm
    2015 freezing days
    0
    Typical
    0.4

    Heat accumulation ran ahead of the typical month.

  4. 1–30
    Growing season

    Heat accumulation

    2015 301 GDD
    Typical 165 GDD

    Rainfall

    2015 5.7 mm
    Typical 35.5 mm

    Heat accumulation ran ahead of the typical month.

  5. 1–31
    Growing season

    Heat accumulation

    2015 363 GDD
    Typical 300 GDD

    Rainfall

    2015 1.9 mm
    Typical 8.8 mm

    Heat accumulation ran ahead of the typical month.

  6. 1–31
    Growing season

    Heat accumulation

    2015 327 GDD
    Typical 298 GDD

    Rainfall

    2015 14.1 mm
    Typical 11.5 mm

    Close to the typical monthly pattern.

  7. 1–30
    Growing seasonHarvest window

    Heat accumulation

    2015 156 GDD
    Typical 184 GDD

    Rainfall

    2015 11.8 mm
    Typical 34.1 mm

    Drier than the typical month.

  8. 1–31
    Growing seasonHarvest window

    Heat accumulation

    2015 97 GDD
    Typical 41 GDD

    Rainfall

    2015 92.2 mm
    Typical 92.2 mm

    Heat accumulation ran ahead of the typical month.

View milestone calendar data as a table
Month2015 GDDTypical GDD2015 rainfallTypical rainfall2015 freezing daysTypical freezing days
March 2015 0 GDD 3 GDD 104.4 mm 118.5 mm 411.5
April 2015 23 GDD 19 GDD 43.9 mm 84.9 mm 23.9
May 2015 130 GDD 92 GDD 26.3 mm 57.5 mm 00.4
June 2015 301 GDD 165 GDD 5.7 mm 35.5 mm Outside frost windowOutside frost window
July 2015 363 GDD 300 GDD 1.9 mm 8.8 mm Outside frost windowOutside frost window
August 2015 327 GDD 298 GDD 14.1 mm 11.5 mm Outside frost windowOutside frost window
September 2015 156 GDD 184 GDD 11.8 mm 34.1 mm Outside frost windowOutside frost window
October 2015 97 GDD 41 GDD 92.2 mm 92.2 mm Outside frost windowOutside frost window
Calendar data and method

Monthly values are weighted across every configured regional sample using stored Google ARCO ERA5 daily reanalysis. “Typical” is the mean monthly total across 30 baseline seasons. GDD is counted only inside the configured growing window; freezing days are counted only inside the frost-watch window; rainfall covers every displayed calendar day.

Selected-vintage coverage is 100%. Source rows were last retrieved Aug 20, 2026.

Replay the 2015 growing season

214 daily regional observations

Move through the season to follow temperature, rainfall, accumulated heat, and recorded weather events day by day.

Replay data and method

Daily values are weighted across every configured regional sample using stored Google ARCO ERA5 reanalysis. Coverage is 100%. Source rows were last retrieved Aug 20, 2026.

Closest weather matches

These years had the most similar growing-season and harvest weather.

  1. Closest match

    2025

    Most alike in Harvest precipitation and Growing-season mean temperature.

    Harvest precipitation
    less rain: 0.2 mm
    Growing-season mean temperature
    cooler: 0.0°C

    Largest difference: Hot-day count — fewer hot days

    View 2025 →

  2. Second closest

    2003

    Most alike in Harvest precipitation and Growing-season precipitation.

    Harvest precipitation
    less rain: 11.5 mm
    Growing-season precipitation
    more rain: 36.6 mm

    Largest difference: Growing-season mean temperature — cooler

    View 2003 →

  3. Third closest

    2021

    Most alike in Growing-season precipitation and Hot-day count.

    Growing-season precipitation
    more rain: 17.1 mm
    Hot-day count
    fewer hot days: 4 days

    Largest difference: Spring frost exposure — more frost-exposure days

    View 2021 →
How similar years are calculated

Method analog-v1-2026-07 standardizes six weather measures across 34 complete ARCO ERA5 comparison years, then measures the distance between them. The calculation runs when the page is requested.

Measures used: Growing-season mean temperature (20%); Growing degree days (15%); Hot-day count (15%); Growing-season precipitation (20%); Harvest precipitation (20%); Spring frost exposure (10%).

Calculated distances: 2025 0.387; 2003 0.894; 2021 0.953.

Growing-season temperature anomalyCompared with 1991-2020
Temperature anomaly by vintage, 1991 to 2026 A line above zero indicates a warmer growing season than the 1991–2020 baseline. Select a point to inspect that vintage. +1.9°C −1.9°C 1991 2000 2010 2020 2026
Growing-season rainfall anomaly
Rainfall anomaly by vintage, 1991 to 2026 Bars show millimeters above or below the 1991–2020 growing-season baseline. Select a bar to inspect that vintage. +210 mm −210 mm 1991 2000 2010 2020 2026
View historical chart data as a table
YearTemperature anomalyRainfall anomalyHot days
1991-0.6°C+3 mm8
1992+0.9°C-13 mm17
1993-0.7°C+46 mm5
1994+0.3°C+65 mm5
1995-0.4°C+100 mm3
1996-0.5°C+123 mm17
1997-0.2°C+171 mm5
1998+0.3°C-40 mm21
1999-1.0°C-98 mm4
2000-0.7°C-57 mm5
2001-0.6°C+10 mm9
2002-0.6°C-137 mm14
2003+0.8°C-92 mm21
2004+0.6°C+67 mm10
2005-0.1°C+38 mm12
2006+0.5°C-109 mm20
2007-0.4°C-55 mm9
2008-0.8°C-79 mm15
2009+0.3°C-12 mm23
2010-1.0°C+134 mm9
2011-1.1°C-4 mm10
2012-0.0°C+21 mm13
2013+0.4°C+30 mm10
2014+1.1°C+90 mm18
2015+1.7°C-128 mm31
2016+0.5°C+16 mm12
2017+0.7°C+48 mm25
2018+0.6°C-60 mm22
2019-0.3°C-5 mm5
2020+0.5°C-74 mm13
2021+1.0°C-111 mm27
2022+0.7°C+81 mm27
2023+0.9°C-55 mm11
2024+0.6°C-74 mm23
2025+1.6°C-105 mm24
2026+1.6°C-199 mm11

winter

3.9°C

+2.3°C vs baseline

369 mm rain · -96 mm

spring

10.6°C

+1.9°C vs baseline

174 mm rain · -86 mm

summer

20.8°C

+2.5°C vs baseline

21 mm rain · -34 mm

harvest

14.1°C

+1.0°C vs baseline

104 mm rain · -22 mm

Weather events

Periods that crossed one of the published regional thresholds, shown in date order.

  1. Spring frost exposure

    Minimum temperature
    -2.5°C
    Duration
    1 day
    Severe-freeze days
    1 day

    The regional model recorded freezing temperatures during spring.

  2. Spring frost exposure

    Minimum temperature
    -2.9°C
    Duration
    3 days
    Severe-freeze days
    1 day

    The regional model recorded freezing temperatures during spring.

  3. Spring frost exposure

    Minimum temperature
    -0.5°C
    Duration
    2 days
    Severe-freeze days
    0 days

    The regional model recorded freezing temperatures during spring.

  4. Dry spell

    Duration
    52 days
    Total rain
    0.9 mm
    Daily cutoff
    1.0 mm/day

  5. Heat episode

    Peak temperature
    35.3°C
    Duration
    3 days
    Heat accumulation
    43 GDD

  6. Heat episode

    Peak temperature
    38.0°C
    Duration
    15 days
    Heat accumulation
    235 GDD

  7. Heat episode

    Peak temperature
    34.3°C
    Duration
    2 days
    Heat accumulation
    29 GDD

  8. Dry spell

    Duration
    34 days
    Total rain
    1.7 mm
    Daily cutoff
    1.0 mm/day

  9. Heat episode

    Peak temperature
    38.6°C
    Duration
    5 days
    Heat accumulation
    80 GDD

  10. Heat episode

    Peak temperature
    33.1°C
    Duration
    3 days
    Heat accumulation
    42 GDD

  11. Heat episode

    Peak temperature
    33.9°C
    Duration
    2 days
    Heat accumulation
    28 GDD

  12. Dry spell

    Duration
    14 days
    Total rain
    3.0 mm
    Daily cutoff
    1.0 mm/day

  13. Dry spell

    Duration
    19 days
    Total rain
    1.9 mm
    Daily cutoff
    1.0 mm/day

  14. Concentrated harvest rain

    Total rain
    56.6 mm
    Highest 3-day total
    56.6 mm
    Trigger threshold
    28.5 mm

    A large share of the season's rain fell during the harvest period.

How events are detected

Weather & Vines combined regional series; method event-timeline-v2-2026-07, rules columbia-gorge-catalog-v1-2026-07. Source last updated Aug 1, 2026, calculated Aug 29, 2026. Each configured point must have at least 95.0% coverage.

1991–present

Climate change

Measured regional trends are shown separately from model projections. The observed record ends at the latest complete growing season shared by every published region.

Compare regions

Observed record

Historical trends, 1991–2025

Growing degree days changed +72.8 GDD per decade. The 95% interval is +39.7 to +105.9 GDD per decade, based on 35 eligible vintages.

How it is measured: Across the April 1–October 31 growing season, each day's mean temperature above 10°C adds to the total; cooler days add zero.

Growing degree days · annual change from the 1991–2020 average1991–2025

Scroll horizontally to inspect the full timeline.

View annual growing degree days data
VintageGrowing degree daysChange from 1991–2020
19911030 GDD-69 GDD
19921239 GDD+140 GDD
1993921 GDD-178 GDD
19941135 GDD+36 GDD
19951006 GDD-93 GDD
19961040 GDD-59 GDD
19971059 GDD-40 GDD
19981175 GDD+76 GDD
1999955 GDD-144 GDD
2000931 GDD-168 GDD
20011023 GDD-76 GDD
20021024 GDD-75 GDD
20031270 GDD+171 GDD
20041168 GDD+69 GDD
20051059 GDD-40 GDD
20061164 GDD+65 GDD
20071031 GDD-68 GDD
20081015 GDD-84 GDD
20091192 GDD+93 GDD
2010904 GDD-195 GDD
2011916 GDD-183 GDD
20121099 GDD+0 GDD
20131170 GDD+71 GDD
20141271 GDD+172 GDD
20151397 GDD+298 GDD
20161114 GDD+15 GDD
20171255 GDD+156 GDD
20181183 GDD+84 GDD
20191045 GDD-54 GDD
20201178 GDD+79 GDD
20211282 GDD+183 GDD
20221307 GDD+208 GDD
20231330 GDD+231 GDD
20241219 GDD+120 GDD
20251376 GDD+277 GDD
Growing-season mean temperature
+0.38 °C per decade 95% interval +0.19 to +0.56
Growing degree days
+72.78 GDD per decade 95% interval +39.68 to +105.89
Growing-season precipitation
-23.15 mm per decade 95% interval -47.00 to +0.70
Hot days
+3.94 days per decade 95% interval +2.72 to +5.16
Spring frost days
+0.38 days per decade 95% interval -2.17 to +2.94
Longest dry spell
+1.39 days per decade 95% interval -2.51 to +5.29

Last Updated August 20, 2026

Model ensemble

Projected climate through 2075

Temperature changes are relative to each model’s 1991–2020 baseline. The table combines all three pathways, weighted 70% to SSP2-4.5 and 15% each to SSP1-2.6 and SSP3-7.0.

Scroll horizontally to compare all columns.

PeriodWeighted medianWeighted central 80%Models per pathway
2021-2040+1.0°C+0.6 to +1.6°C25
2041-2060+1.7°C+1.2 to +2.7°C25
2061-2075+2.1°C+1.6 to +3.3°C25
How pathways are combined

For each period and percentile, Weather & Vines takes 70% of the SSP2-4.5 value, 15% of the SSP1-2.6 value, and 15% of the SSP3-7.0 value. Each pathway contains the same 25 models. The weights are an editorial view of the current trajectory, not scenario probabilities.

Last Updated June 29, 2025

Compare projection measures across regions

Typical year · 1991–2020

When to visit

This calendar describes typical regional weather under the selected climate baseline. It is not a forecast for a future trip, and it does not account for crowds, lodging, events, or vineyard access.

Deterministic IFS forecast

Next ten days

Detailed forecast outlook

ECMWF IFS 0.25° via Herbie · model run Aug 30, 2026 at 00:00 UTC · retrieved Aug 30, 2026 at 08:22 UTC

Scroll horizontally to see all forecast dates.

DateSunMonTueWedThuFriSatSunMonTue
High 22°C 29°C 22°C 19°C 13°C 16°C 19°C 22°C 24°C 25°C
Low 8°C 9°C 14°C 12°C 11°C 10°C 8°C 8°C 7°C 11°C
Rain 0.0 mm 0.0 mm 0.0 mm 3.5 mm 14.4 mm 3.2 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm

Across the typical year: Late July has the warmest median afternoon high (28.9°C); Late December has the coolest (3.7°C). Wet days are most frequent in Late November (67%) and least frequent in Early August (7%). Ties are resolved by calendar order.

Typical afternoon highs and overnight lowsMedians and middle 50% of daily readings

Afternoon highOvernight lowMiddle 50%

Scroll horizontally to inspect all 24 half-month periods.

Typical afternoon highs and overnight lows for Columbia Gorge Median daily maximum and minimum temperatures for 24 early and late-month periods under the 1991–2020 baseline. Neutral bands show the 25th to 75th percentile. -5°C5°C15°C25°C35°C JanFebMarAprMayJunJulAugSepOctNovDec
How often a day is wetShare of days with at least 1 mm of rain

Scroll horizontally to inspect all 24 half-month periods.

Wet-day frequency through the typical year for Columbia Gorge The fraction of days receiving at least one millimeter of rain in each early and late-month period under the 1991–2020 baseline. 0%25%50%75%100% JanFebMarAprMayJunJulAugSepOctNovDec
View all 24 periods as a table

Scroll horizontally to view all columns.

Columbia Gorge typical weather by half-month, 1991–2020
PeriodAfternoon high, median (middle 50%)Overnight low, median (middle 50%)Wet-day frequencyPeriod rain, median (middle 50%)
Jan 1–154.2°C (1.6–6.4°C)-1.1°C (-4.0–0.7°C)63%73.6 mm (44.8–104.8 mm)
Jan 16–315.0°C (3.0–7.4°C)-0.7°C (-2.7–1.0°C)61%81.3 mm (52.8–116.0 mm)
Feb 1–156.5°C (4.6–8.4°C)-0.6°C (-2.7–1.2°C)55%51.8 mm (31.0–86.8 mm)
Feb 16–296.8°C (4.9–9.0°C)-0.4°C (-2.4–1.1°C)57%57.4 mm (36.2–74.3 mm)
Mar 1–158.9°C (6.5–11.7°C)0.4°C (-1.5–2.1°C)60%52.5 mm (30.8–92.3 mm)
Mar 16–3110.5°C (8.3–13.1°C)1.1°C (-0.3–2.6°C)59%51.7 mm (38.1–71.1 mm)
Apr 1–1511.6°C (9.5–14.5°C)2.1°C (0.3–4.0°C)59%46.7 mm (30.7–61.6 mm)
Apr 16–3014.5°C (11.8–17.6°C)3.4°C (1.6–5.1°C)44%26.6 mm (15.8–45.7 mm)
May 1–1516.8°C (13.5–21.5°C)5.3°C (3.0–7.4°C)36%23.7 mm (13.8–41.1 mm)
May 16–3118.8°C (15.4–22.7°C)7.2°C (5.3–9.0°C)36%26.4 mm (12.6–42.4 mm)
Jun 1–1520.1°C (16.5–23.5°C)8.0°C (6.4–10.0°C)33%14.0 mm (8.6–38.2 mm)
Jun 16–3023.3°C (19.6–26.9°C)9.4°C (7.6–11.5°C)20%12.2 mm (5.3–19.8 mm)
Jul 1–1526.3°C (22.8–29.7°C)11.1°C (9.4–12.9°C)8%2.5 mm (0.4–5.1 mm)
Jul 16–3128.9°C (25.4–32.0°C)12.3°C (10.5–14.3°C)7%1.8 mm (0.5–7.5 mm)
Aug 1–1528.6°C (25.1–31.5°C)12.5°C (10.5–14.1°C)7%1.5 mm (0.4–4.5 mm)
Aug 16–3126.7°C (23.7–29.4°C)11.4°C (9.5–13.0°C)11%3.5 mm (0.8–9.6 mm)
Sep 1–1524.9°C (21.2–28.4°C)9.8°C (7.8–11.6°C)14%6.0 mm (0.4–19.2 mm)
Sep 16–3022.0°C (18.2–25.1°C)8.2°C (6.3–10.2°C)23%15.7 mm (7.4–34.1 mm)
Oct 1–1516.5°C (14.0–20.0°C)5.9°C (3.9–7.7°C)35%30.4 mm (14.5–43.2 mm)
Oct 16–3113.7°C (11.1–16.5°C)3.9°C (2.1–5.7°C)46%61.8 mm (22.5–79.7 mm)
Nov 1–159.7°C (7.8–11.9°C)2.0°C (-0.1–4.0°C)56%59.2 mm (30.2–82.9 mm)
Nov 16–306.8°C (4.3–8.4°C)0.4°C (-1.8–2.1°C)67%90.2 mm (45.8–120.7 mm)
Dec 1–154.3°C (2.5–6.2°C)-1.2°C (-3.2–0.5°C)62%85.9 mm (42.0–133.2 mm)
Dec 16–313.7°C (1.8–5.8°C)-1.6°C (-3.6–0.1°C)61%92.4 mm (60.6–116.5 mm)

Each year contributes to temperature or rain separately when at least 90% of that period’s days are present. A value is shown only when at least 80% of the baseline years qualify. February 29 is included in late February.

Historical climatology Last Updated August 20, 2026

Season to date

Growing season heat and rainfall

Apr 1–Aug 29, 2026

Growing degree days939.6base 10°C
Growing-season rainfall125.8 mmweighted regional total
Cumulative growing degree daysBase 10°C

2026 season1991–2020 average

Growing degree days accumulated during the 2026 growing season The solid line accumulates daily mean temperature above 10 degrees Celsius from the configured growing-season start. The dashed line shows the 1991–2020 daily climatological average. 940 GDD 0 Apr ’26MayJunJulAug
Cumulative growing-season rainfallRegional weighted mean

2026 season1991–2020 average

Rainfall accumulated during the 2026 growing season The solid line accumulates daily rainfall in millimeters from the configured growing-season start. The dashed line shows the 1991–2020 daily climatological average. 194 mm 0 Apr ’26MayJunJulAug
View growing-season accumulation data
DateSeason GDD1991–2020 average GDDSeason rainfall1991–2020 average rainfall
2026-04-010.00.416.1 mm2.8 mm
2026-04-020.00.918.7 mm5.0 mm
2026-04-030.01.318.7 mm7.5 mm
2026-04-041.01.418.7 mm10.3 mm
2026-04-054.91.518.7 mm13.6 mm
2026-04-0610.01.818.7 mm17.2 mm
2026-04-0710.72.418.7 mm21.0 mm
2026-04-0811.53.018.7 mm24.7 mm
2026-04-0914.13.618.7 mm28.2 mm
2026-04-1017.63.919.2 mm31.8 mm
2026-04-1118.94.324.3 mm35.2 mm
2026-04-1218.94.727.8 mm38.4 mm
2026-04-1318.94.829.1 mm42.4 mm
2026-04-1418.94.933.6 mm46.2 mm
2026-04-1518.95.150.3 mm49.2 mm
2026-04-1618.95.553.2 mm52.4 mm
2026-04-1718.96.253.3 mm55.1 mm
2026-04-1820.07.053.3 mm56.8 mm
2026-04-1923.77.953.3 mm58.6 mm
2026-04-2029.59.153.3 mm60.7 mm
2026-04-2131.010.256.2 mm62.6 mm
2026-04-2231.011.065.0 mm64.9 mm
2026-04-2331.011.765.1 mm68.4 mm
2026-04-2431.012.465.1 mm72.0 mm
2026-04-2531.013.565.1 mm74.7 mm
2026-04-2631.314.865.1 mm76.6 mm
2026-04-2731.316.165.2 mm78.8 mm
2026-04-2831.317.265.2 mm80.8 mm
2026-04-2932.618.365.2 mm82.7 mm
2026-04-3037.719.365.2 mm84.9 mm
2026-05-0143.920.765.3 mm86.1 mm
2026-05-0251.922.365.3 mm88.1 mm
2026-05-0362.224.065.3 mm90.7 mm
2026-05-0470.226.065.4 mm93.2 mm
2026-05-0577.328.265.4 mm95.4 mm
2026-05-0682.430.165.4 mm96.9 mm
2026-05-0787.232.465.4 mm98.5 mm
2026-05-0889.834.765.4 mm100.4 mm
2026-05-0995.336.865.4 mm102.3 mm
2026-05-1098.839.365.4 mm103.8 mm
2026-05-11104.142.065.4 mm104.8 mm
2026-05-12112.744.765.5 mm106.5 mm
2026-05-13114.347.574.6 mm107.7 mm
2026-05-14114.951.076.8 mm109.7 mm
2026-05-15114.954.479.8 mm113.0 mm
2026-05-16114.957.885.5 mm115.1 mm
2026-05-17114.961.085.8 mm117.7 mm
2026-05-18116.564.186.6 mm120.0 mm
2026-05-19118.767.086.6 mm121.9 mm
2026-05-20122.769.486.6 mm123.9 mm
2026-05-21129.071.786.6 mm126.1 mm
2026-05-22137.274.786.6 mm128.3 mm
2026-05-23142.978.486.6 mm130.3 mm
2026-05-24148.882.586.6 mm131.4 mm
2026-05-25151.886.288.1 mm132.7 mm
2026-05-26153.389.888.8 mm133.9 mm
2026-05-27161.093.589.3 mm135.8 mm
2026-05-28170.597.490.1 mm137.7 mm
2026-05-29172.7101.593.6 mm139.9 mm
2026-05-30173.7105.993.6 mm141.0 mm
2026-05-31176.6111.093.6 mm142.4 mm
2026-06-01183.0115.893.6 mm143.6 mm
2026-06-02192.6120.793.6 mm145.1 mm
2026-06-03199.3125.793.7 mm146.1 mm
2026-06-04203.6130.693.7 mm148.3 mm
2026-06-05205.8135.293.8 mm150.1 mm
2026-06-06205.8139.996.0 mm151.8 mm
2026-06-07207.6144.396.1 mm153.5 mm
2026-06-08209.2148.5105.1 mm155.2 mm
2026-06-09211.3152.6114.2 mm156.8 mm
2026-06-10214.2156.6115.0 mm158.5 mm
2026-06-11219.8160.7115.0 mm159.7 mm
2026-06-12227.4165.1115.0 mm161.1 mm
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2026-06-14249.1173.6115.0 mm163.2 mm
2026-06-15263.1177.9115.0 mm164.6 mm
2026-06-16272.8182.4115.0 mm165.7 mm
2026-06-17280.5187.3115.0 mm166.4 mm
2026-06-18290.0192.5115.0 mm167.6 mm
2026-06-19302.5197.8115.0 mm168.2 mm
2026-06-20310.0203.9115.0 mm169.4 mm
2026-06-21317.5210.4115.0 mm169.9 mm
2026-06-22328.1216.6115.0 mm170.5 mm
2026-06-23340.9222.9115.0 mm171.4 mm
2026-06-24352.4229.4115.0 mm172.4 mm
2026-06-25359.5236.4116.5 mm173.4 mm
2026-06-26364.1244.0117.7 mm174.4 mm
2026-06-27366.6251.8121.4 mm175.6 mm
2026-06-28370.4259.8123.4 mm176.4 mm
2026-06-29373.8267.9123.9 mm177.5 mm
2026-06-30376.6276.0124.1 mm177.8 mm
2026-07-01379.3284.3124.1 mm178.1 mm
2026-07-02384.7292.5124.2 mm178.3 mm
2026-07-03393.4300.5124.2 mm178.6 mm
2026-07-04401.4308.3124.2 mm178.8 mm
2026-07-05411.1316.2124.2 mm179.0 mm
2026-07-06423.6324.6124.2 mm179.2 mm
2026-07-07434.6333.2124.2 mm179.4 mm
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2026-07-09453.1351.8124.2 mm180.9 mm
2026-07-10462.7361.0124.2 mm181.2 mm
2026-07-11471.6370.3124.2 mm181.3 mm
2026-07-12480.5379.9124.2 mm181.6 mm
2026-07-13490.9389.2124.2 mm181.7 mm
2026-07-14504.0398.5124.2 mm181.8 mm
2026-07-15517.9408.1124.2 mm181.9 mm
2026-07-16526.5417.8124.3 mm182.4 mm
2026-07-17534.5427.4124.4 mm182.9 mm
2026-07-18543.1436.9124.4 mm183.3 mm
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2026-07-23612.0487.8124.9 mm185.6 mm
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2026-07-27652.4530.9124.9 mm186.0 mm
2026-07-28661.0542.4124.9 mm186.1 mm
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2026-08-01698.8586.7125.0 mm186.8 mm
2026-08-02704.1597.2125.0 mm186.9 mm
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2026-08-06748.4640.0125.0 mm187.6 mm
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2026-08-09784.2669.0125.0 mm188.7 mm
2026-08-10794.1679.2125.0 mm189.1 mm
2026-08-11804.2689.2125.0 mm189.3 mm
2026-08-12814.1699.3125.1 mm189.4 mm
2026-08-13824.2710.1125.1 mm189.7 mm
2026-08-14835.3720.9125.2 mm189.8 mm
2026-08-15846.2731.3125.7 mm189.8 mm
2026-08-16857.3741.3125.7 mm189.9 mm
2026-08-17868.4751.5125.7 mm190.1 mm
2026-08-18879.7761.6125.7 mm190.2 mm
2026-08-19891.4771.7125.7 mm190.5 mm
2026-08-20905.4781.3125.7 mm191.3 mm
2026-08-21919.3790.3125.7 mm191.7 mm
2026-08-22930.3798.6125.7 mm193.1 mm
2026-08-23939.6806.5125.8 mm193.9 mm

Forecast outlook

ECMWF IFS 0.25° via Herbie · run Aug 30, 2026 at 00:00 UTC

10-day totals compared with the 1991–2020 combined regional record

GDD accumulation
57 GDDvs 76 GDD average
Total rainfall
21.2 mmvs 5.7 mm average

No unusually hot or wet period stands out in the short-range forecast.

Sun8/30 22°Cavg 25°C 8°Cavg 11°C +5 GDD 0.0 mm
Mon8/31 29°Cavg 25°C 9°Cavg 10°C +9 GDD 0.0 mm
Tue9/1 22°Cavg 25°C 14°Cavg 10°C +7 GDD 0.0 mm
Wed9/2 19°Cavg 26°C 12°Cavg 10°C +5 GDD 3.5 mm
Thu9/3 13°Cavg 26°C 11°Cavg 10°C +2 GDD 14.4 mm
Fri9/4 16°Cavg 25°C 10°Cavg 10°C +3 GDD 3.2 mm
Sat9/5 19°Cavg 25°C 8°Cavg 10°C +4 GDD 0.0 mm
Sun9/6 22°Cavg 25°C 8°Cavg 10°C +6 GDD 0.0 mm
Mon9/7 24°Cavg 25°C 7°Cavg 10°C +7 GDD 0.0 mm
Tue9/8 25°Cavg 24°C 11°Cavg 10°C +10 GDD 0.0 mm

Data and methods

Show data sources and model assumptions

Current temperature, dew point, humidity, and wind use geographically weighted NWS station observations. The 24-hour rain total and 10-day outlook use the 00 UTC deterministic ECMWF IFS 0.25° public forecast retrieved directly with Herbie. Historical temperature and rain combine qualifying GHCN-D stations with ERA5 by geographic area; a missing station day uses the nearest ERA5 value for that station's area. Climate comparisons use 1991–2020.

Forecast comparisons use the 1991–2020 combined regional daily record. Daily high and low averages use the matching date; rainfall and GDD sum the same calendar dates as the forecast period.

This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Weather & Vines subsets, converts, and regionally weights the forecast fields. ECMWF data are published under CC BY 4.0. ECMWF accepts no liability for errors, omissions, availability, loss, or damage arising from their use.

Climate projections use NASA NEX-GDDP-CMIP6 v2.0, accessed August 23, 2026, with 25 models. Weather & Vines subsets and aggregates the source fields. Source files and derived projection data are under CC BY-SA 4.0; the full roster and limitations are listed in the climate atlas methods.

The Columbia Gorge model uses a April 1–October 31 growing season, base 10°C GDD, and an operational hot-day marker of 32°C.

The historical series uses 1 ERA5 location, 8 temperature stations, and 7 rain stations. Interpretation confidence: high. Geometry confidence: reviewed-approximate. Rules: columbia-gorge-catalog-v1-2026-07.