Gregory County weather, town by town
7 places in Gregory 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 1906 to 2026. Station extremes, not official state records.
Gregory County Weather Facts
Gregory County has 7 places on myweatherrock (3 cities, 3 towns, 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 114°F at Gregory on July 16, 1936. The coldest night is -36°F at Gregory on December 21, 1983. The wettest day brought 5.21 inches of rain at Gregory on July 17, 1923. The biggest single-day snow measured 19.49 inches at Gregory on November 2, 1972. Those are station measurements from NOAA's daily records, 1906 to 2026, not official state records. By area the largest place is Gregory, about 2 square miles.
About Gregory County weather
The map on the Now tab shows every Gregory 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 5 Gregory 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 11°F. May is the wettest, with rain on about 10 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.
Gregory County weather records
Measured at the NOAA stations serving these towns, daily records 1906 to 2026. Station extremes, not official state records.
Common questions about Gregory County weather
- What is the hottest temperature recorded at a Gregory County station?
- 114°F at Gregory on July 16, 1936, in the NOAA daily station records myweatherrock holds (1906 to 2026).
- What is the coldest temperature recorded at a Gregory County station?
- -36°F at Gregory on December 21, 1983.
- What is the most rain a Gregory County station has measured in one day?
- 5.21 inches at Gregory on July 17, 1923.
- What is the biggest one-day snowfall at a Gregory County station?
- 19.49 inches at Gregory on November 2, 1972.
- How many Gregory County towns have a weather page here?
- 7: 3 cities, 3 towns, 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 Gregory 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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