Chouteau County weather, town by town
12 places in Chouteau County, Montana, 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 1894 to 2026. Station extremes, not official state records.
Chouteau County Weather Facts
Chouteau County has 12 places on myweatherrock (9 census-designated places, 2 towns, 1 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 111°F at Big Sandy on August 5, 1961. The coldest night is -54°F at Loma on January 14, 1972. The wettest day brought 6.7 inches of rain at Shonkin 7 S on May 9, 2024. The biggest single-day snow measured 47.99 inches at Shonkin 7 S on May 29, 1982. Those are station measurements from NOAA's daily records, 1894 to 2026, not official state records. By area the largest place is Rocky Boy West, about 5 square miles.
About Chouteau County weather
The map on the Now tab shows every Chouteau 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 12 Chouteau County towns with station normals, the warmest month is July, when the day usually reaches 85°F, and the coldest is January, when the night usually falls to 13°F. June is the wettest, with rain on about 9 days. July afternoons run from about 75°F in Boneau to 88°F in Loma. January nights run from about 7°F in Sunnybrook Colony to 18°F in Geraldine.
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.
Chouteau County weather records
Measured at the NOAA stations serving these towns, daily records 1894 to 2026. Station extremes, not official state records.
Common questions about Chouteau County weather
- What is the hottest temperature recorded at a Chouteau County station?
- 111°F at Big Sandy on August 5, 1961, in the NOAA daily station records myweatherrock holds (1894 to 2026).
- What is the coldest temperature recorded at a Chouteau County station?
- -54°F at Loma on January 14, 1972.
- What is the most rain a Chouteau County station has measured in one day?
- 6.7 inches at Shonkin 7 S on May 9, 2024.
- What is the biggest one-day snowfall at a Chouteau County station?
- 47.99 inches at Shonkin 7 S on May 29, 1982.
- How many Chouteau County towns have a weather page here?
- 12: 9 census-designated places, 2 towns, 1 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 Chouteau 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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