Idaho County weather, town by town
8 places in Idaho County, Idaho, 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.
Idaho County Weather Facts
Idaho County has 8 places on myweatherrock (7 cities, 1 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 115°F at Riggins on August 20, 1967. The coldest night is -48°F at Elk City 1Ne on February 5, 1982. The wettest day brought 3.01 inches of rain at Grangeville on September 14, 1955. The biggest single-day snow measured 20.98 inches at Grangeville on November 25, 1961. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Elk, about 3 square miles.
About Idaho County weather
The map on the Now tab shows every Idaho 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 Idaho County towns with station normals, the warmest month is August, when the day usually reaches 86°F, and the coldest is December, when the night usually falls to 24°F. April is the wettest, with rain on about 14 days. August afternoons run from about 81°F in Cottonwood to 92°F in Kooskia. December nights run from about 14°F in Elk to 29°F in Riggins.
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.
Idaho 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 Idaho County weather
- What is the hottest temperature recorded at a Idaho County station?
- 115°F at Riggins on August 20, 1967, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Idaho County station?
- -48°F at Elk City 1Ne on February 5, 1982.
- What is the most rain a Idaho County station has measured in one day?
- 3.01 inches at Grangeville on September 14, 1955.
- What is the biggest one-day snowfall at a Idaho County station?
- 20.98 inches at Grangeville on November 25, 1961.
- How many Idaho County towns have a weather page here?
- 8: 7 cities, 1 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 Idaho 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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