Umatilla County weather, town by town
22 places in Umatilla County, Oregon, 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 1928 to 2026. Station extremes, not official state records.
Umatilla County Weather Facts
Umatilla County has 22 places on myweatherrock (12 cities, 10 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 118°F at Hermiston Muni Ap on June 29, 2021. The coldest night is -31°F at Meacham on January 5, 2004. The wettest day brought 3.5 inches of rain at Lucky Strike on May 20, 2020. The biggest single-day snow measured 14.02 inches at Milton Freewater on February 16, 2021. Those are station measurements from NOAA's daily records, 1928 to 2026, not official state records. By area the largest place is McKay, about 23 square miles.
About Umatilla County weather
The map on the Now tab shows every Umatilla 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 22 Umatilla County towns with station normals, the warmest month is July, when the day usually reaches 88°F, and the coldest is December, when the night usually falls to 27°F. December is the wettest, with rain on about 13 days. July afternoons run from about 72°F in Ukiah to 92°F in Echo. December nights run from about 20°F in Meacham to 29°F in Milton-Freewater.
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.
Umatilla County weather records
Measured at the NOAA stations serving these towns, daily records 1928 to 2026. Station extremes, not official state records.
Common questions about Umatilla County weather
- What is the hottest temperature recorded at a Umatilla County station?
- 118°F at Hermiston Muni Ap on June 29, 2021, in the NOAA daily station records myweatherrock holds (1928 to 2026).
- What is the coldest temperature recorded at a Umatilla County station?
- -31°F at Meacham on January 5, 2004.
- What is the most rain a Umatilla County station has measured in one day?
- 3.5 inches at Lucky Strike on May 20, 2020.
- What is the biggest one-day snowfall at a Umatilla County station?
- 14.02 inches at Milton Freewater on February 16, 2021.
- How many Umatilla County towns have a weather page here?
- 22: 12 cities, 10 census-designated places. 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 Umatilla 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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