Walla Walla County weather, town by town
10 places in Walla Walla County, Washington, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Walla Walla County Weather Facts
Walla Walla County has 10 places on myweatherrock (6 census-designated places, 4 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 118°F at Ice Harbor Dam on August 5, 1961. The coldest night is -29°F at Kennewick on December 13, 1919. The wettest day brought 3.64 inches of rain at Walla Walla Rgnl Ap on July 23, 1992. The biggest single-day snow measured 17.52 inches at Dayton 1 Wsw on December 25, 1996. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Walla Walla, about 14 square miles.
About Walla Walla County weather
The map on the Now tab shows every Walla Walla County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 10 Walla Walla County towns with station normals, the warmest month is July, when the day usually reaches 90°F, and the coldest is January, when the night usually falls to 29°F. December is the wettest, with rain on about 13 days. July afternoons run from about 87°F in Waitsburg to 91°F in Burbank. January nights run from about 27°F in College Place to 30°F in Burbank.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Walla Walla County weather records
Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Common questions about Walla Walla County weather
- What is the hottest temperature recorded at a Walla Walla County station?
- 118°F at Ice Harbor Dam on August 5, 1961, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Walla Walla County station?
- -29°F at Kennewick on December 13, 1919.
- What is the most rain a Walla Walla County station has measured in one day?
- 3.64 inches at Walla Walla Rgnl Ap on July 23, 1992.
- What is the biggest one-day snowfall at a Walla Walla County station?
- 17.52 inches at Dayton 1 Wsw on December 25, 1996.
- How many Walla Walla County towns have a weather page here?
- 10: 6 census-designated places, 4 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Walla Walla County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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