Gilliam County weather, town by town
3 places in Gilliam 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 1893 to 2026. Station extremes, not official state records.
Gilliam County Weather Facts
Gilliam County has 3 places on myweatherrock (3 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 117°F at Arlington on June 30, 2021. The coldest night is -26°F at Fossil on January 26, 1957. The wettest day brought 4.2 inches of rain at Fossil on August 11, 2017. The biggest single-day snow measured 10.98 inches at Fossil on January 27, 1950. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Arlington, about 2 square miles.
About Gilliam County weather
The map on the Now tab shows every Gilliam 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 3 Gilliam County towns with station normals, the warmest month is July, when the day usually reaches 88°F, and the coldest is January, when the night usually falls to 28°F. January is the wettest, with rain on about 7 days. July afternoons run from about 86°F in Condon to 91°F in Arlington. January nights run from about 27°F in Condon to 31°F in Arlington.
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.
Gilliam 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 Gilliam County weather
- What is the hottest temperature recorded at a Gilliam County station?
- 117°F at Arlington on June 30, 2021, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Gilliam County station?
- -26°F at Fossil on January 26, 1957.
- What is the most rain a Gilliam County station has measured in one day?
- 4.2 inches at Fossil on August 11, 2017.
- What is the biggest one-day snowfall at a Gilliam County station?
- 10.98 inches at Fossil on January 27, 1950.
- How many Gilliam County towns have a weather page here?
- 3: 3 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 Gilliam 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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