Buchanan County weather, town by town
7 places in Buchanan County, Missouri, 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 1948 to 2025. Station extremes, not official state records.
Buchanan County Weather Facts
Buchanan County has 7 places on myweatherrock (2 villages, 2 towns, 2 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 107°F at St Joseph Rosecrans Mem Ap on July 13, 1954. The coldest night is -25°F at St Joseph Rosecrans Mem Ap on January 12, 1974. The wettest day brought 6.95 inches of rain at St. Joseph 2.1 Ne on June 25, 2021. The biggest single-day snow measured 15 inches at Atchison on April 2, 1926. Those are station measurements from NOAA's daily records, 1948 to 2025, not official state records. By area the largest place is St. Joseph, about 44 square miles.
About Buchanan County weather
The map on the Now tab shows every Buchanan 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 7 Buchanan 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 17°F. May is the wettest, with rain on about 12 days.
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.
Buchanan County weather records
Measured at the NOAA stations serving these towns, daily records 1948 to 2025. Station extremes, not official state records.
Common questions about Buchanan County weather
- What is the hottest temperature recorded at a Buchanan County station?
- 107°F at St Joseph Rosecrans Mem Ap on July 13, 1954, in the NOAA daily station records myweatherrock holds (1948 to 2025).
- What is the coldest temperature recorded at a Buchanan County station?
- -25°F at St Joseph Rosecrans Mem Ap on January 12, 1974.
- What is the most rain a Buchanan County station has measured in one day?
- 6.95 inches at St. Joseph 2.1 Ne on June 25, 2021.
- What is the biggest one-day snowfall at a Buchanan County station?
- 15 inches at Atchison on April 2, 1926.
- How many Buchanan County towns have a weather page here?
- 7: 2 villages, 2 towns, 2 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 Buchanan 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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