Union County weather, town by town
8 places in Union 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 1949 to 2026. Station extremes, not official state records.
Union County Weather Facts
Union County has 8 places on myweatherrock (7 cities, 1 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 108°F at La Grande on July 13, 2002. The coldest night is -32°F at Moss Springs on December 21, 1990. The wettest day brought 4.6 inches of rain at High Ridge on February 6, 2020. The biggest single-day snow measured 20 inches at La Grande on January 23, 1982. Those are station measurements from NOAA's daily records, 1949 to 2026, not official state records. By area the largest place is La Grande, about 5 square miles.
About Union County weather
The map on the Now tab shows every Union 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 8 Union County towns with station normals, the warmest month is August, when the day usually reaches 82°F, and the coldest is December, when the night usually falls to 22°F. December is the wettest, with rain on about 12 days. August afternoons run from about 73°F in Cove to 87°F in Imbler. December nights run from about 16°F in Cove to 26°F in Union.
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.
Union County weather records
Measured at the NOAA stations serving these towns, daily records 1949 to 2026. Station extremes, not official state records.
Common questions about Union County weather
- What is the hottest temperature recorded at a Union County station?
- 108°F at La Grande on July 13, 2002, in the NOAA daily station records myweatherrock holds (1949 to 2026).
- What is the coldest temperature recorded at a Union County station?
- -32°F at Moss Springs on December 21, 1990.
- What is the most rain a Union County station has measured in one day?
- 4.6 inches at High Ridge on February 6, 2020.
- What is the biggest one-day snowfall at a Union County station?
- 20 inches at La Grande on January 23, 1982.
- How many Union County towns have a weather page here?
- 8: 7 cities, 1 towns. 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 Union 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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