Franklin County weather, town by town
6 places in Franklin 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 1964 to 2026. Station extremes, not official state records.
Franklin County Weather Facts
Franklin County has 6 places on myweatherrock (6 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 110°F at Preston on July 23, 2000. The coldest night is -31°F at Preston on February 6, 1982. The wettest day brought 3.3 inches of rain at Oxford Spring on September 28, 2019. The biggest single-day snow measured 16.5 inches at Preston on January 4, 2017. Those are station measurements from NOAA's daily records, 1964 to 2026, not official state records. By area the largest place is Preston, about 7 square miles.
About Franklin County weather
The map on the Now tab shows every Franklin 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 6 Franklin County towns with station normals, the warmest month is July, when the day usually reaches 87°F, and the coldest is January, when the night usually falls to 16°F. January is the wettest, with rain on about 11 days. July afternoons run from about 82°F in Clifton to 89°F in Dayton. January nights run from about 14°F in Dayton to 20°F in Clifton.
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.
Franklin County weather records
Measured at the NOAA stations serving these towns, daily records 1964 to 2026. Station extremes, not official state records.
Common questions about Franklin County weather
- What is the hottest temperature recorded at a Franklin County station?
- 110°F at Preston on July 23, 2000, in the NOAA daily station records myweatherrock holds (1964 to 2026).
- What is the coldest temperature recorded at a Franklin County station?
- -31°F at Preston on February 6, 1982.
- What is the most rain a Franklin County station has measured in one day?
- 3.3 inches at Oxford Spring on September 28, 2019.
- What is the biggest one-day snowfall at a Franklin County station?
- 16.5 inches at Preston on January 4, 2017.
- How many Franklin County towns have a weather page here?
- 6: 6 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 Franklin 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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