Minnehaha County weather, town by town
16 places in Minnehaha County, South Dakota, 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 1932 to 2025. Station extremes, not official state records.
Minnehaha County Weather Facts
Minnehaha County has 16 places on myweatherrock (8 cities, 6 census-designated places, 2 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 110°F at Sioux Falls on July 17, 1936. The coldest night is -36°F at Sioux Falls on January 19, 1970. The wettest day brought 5.74 inches of rain at Colton on August 21, 2002. The biggest single-day snow measured 18.11 inches at Sioux Falls on March 10, 1956. Those are station measurements from NOAA's daily records, 1932 to 2025, not official state records. By area the largest place is Brandon, about 6 square miles.
About Minnehaha County weather
The map on the Now tab shows every Minnehaha 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 16 Minnehaha County towns with station normals, the warmest month is July, when the day usually reaches 84°F, and the coldest is January, when the night usually falls to 8°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.
Minnehaha County weather records
Measured at the NOAA stations serving these towns, daily records 1932 to 2025. Station extremes, not official state records.
Common questions about Minnehaha County weather
- What is the hottest temperature recorded at a Minnehaha County station?
- 110°F at Sioux Falls on July 17, 1936, in the NOAA daily station records myweatherrock holds (1932 to 2025).
- What is the coldest temperature recorded at a Minnehaha County station?
- -36°F at Sioux Falls on January 19, 1970.
- What is the most rain a Minnehaha County station has measured in one day?
- 5.74 inches at Colton on August 21, 2002.
- What is the biggest one-day snowfall at a Minnehaha County station?
- 18.11 inches at Sioux Falls on March 10, 1956.
- How many Minnehaha County towns have a weather page here?
- 16: 8 cities, 6 census-designated places, 2 towns. 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 Minnehaha 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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