Fall River County weather, town by town
10 places in Fall River 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 1893 to 2026. Station extremes, not official state records.
Fall River County Weather Facts
Fall River County has 10 places on myweatherrock (7 census-designated places, 2 cities, 1 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 114°F at Oelrichs on July 6, 1973. The coldest night is -43°F at Oral on December 21, 1983. The wettest day brought 4.88 inches of rain at Oelrichs on September 26, 1915. The biggest single-day snow measured 27.99 inches at Oelrichs on October 5, 2013. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Angostura, about 13 square miles.
About Fall River County weather
The map on the Now tab shows every Fall River 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 10 Fall River County towns with station normals, the warmest month is July, when the day usually reaches 89°F, and the coldest is January, when the night usually falls to 12°F. May is the wettest, with rain on about 11 days. July afternoons run from about 87°F in Ardmore to 90°F in Dudley. January nights run from about 9°F in Dudley to 16°F in Ardmore.
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.
Fall River County weather records
Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Common questions about Fall River County weather
- What is the hottest temperature recorded at a Fall River County station?
- 114°F at Oelrichs on July 6, 1973, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Fall River County station?
- -43°F at Oral on December 21, 1983.
- What is the most rain a Fall River County station has measured in one day?
- 4.88 inches at Oelrichs on September 26, 1915.
- What is the biggest one-day snowfall at a Fall River County station?
- 27.99 inches at Oelrichs on October 5, 2013.
- How many Fall River County towns have a weather page here?
- 10: 7 census-designated places, 2 cities, 1 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 Fall River 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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