Idaho has 236 places on myweatherrock (200 cities, 36 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 Lewiston Ap on August 4, 1961. The coldest night is -54°F at Stanley on December 23, 1983. The wettest day brought 8.5 inches of rain at Bear Mountain on November 6, 2006. The biggest single-day snow measured 34 inches at Bechler Rvr Rs on January 28, 1933. Those are station measurements from NOAA's daily records, 1892 to 2026, not official state records. By area the largest place is Boise, about 85 square miles.
About Idaho weather
The map on the Now tab shows every Idaho 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 231 Idaho towns with station normals, the warmest month is July, when the day usually reaches 86°F, and the coldest is January, when the night usually falls to 19°F. December is the wettest, with rain on about 11 days. July afternoons run from about 68°F in East Hope to 98°F in Glenns Ferry. January nights run from about -1°F in Stanley to 30°F in Culdesac.
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 weather records
Hottest day
115°F
Lewiston Ap, August 4, 1961
Coldest night
-54°F
Stanley, December 23, 1983
Wettest day
8.5 in
Bear Mountain, November 6, 2006
Biggest snow
34 in
Bechler Rvr Rs, January 28, 1933
Measured at the NOAA stations serving these towns, daily records 1892 to 2026. Station extremes, not official state records.
Common questions about Idaho weather
What is the hottest temperature recorded at a Idaho station?
115°F at Lewiston Ap on August 4, 1961, in the NOAA daily station records myweatherrock holds (1892 to 2026).
What is the coldest temperature recorded at a Idaho station?
-54°F at Stanley on December 23, 1983.
What is the most rain a Idaho station has measured in one day?
8.5 inches at Bear Mountain on November 6, 2006.
What is the biggest one-day snowfall at a Idaho station?
34 inches at Bechler Rvr Rs on January 28, 1933.
How many Idaho towns have a weather page here?
236: 200 cities, 36 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 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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