Decatur County weather, town by town
14 places in Decatur County, Indiana, 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.
Decatur County Weather Facts
Decatur County has 14 places on myweatherrock (9 census-designated places, 4 towns, 1 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 108°F at Shelbyville Sewage Plt on July 14, 1936. The coldest night is -31°F at Rushville on January 17, 1994. The wettest day brought 6.5 inches of rain at N Vernon 2 Ese on June 23, 1960. The biggest single-day snow measured 17.01 inches at Rushville on December 22, 2004. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Greensburg, about 9 square miles.
About Decatur County weather
The map on the Now tab shows every Decatur 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 13 Decatur 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 21°F. May is the wettest, with rain on about 12 days. July afternoons run from about 84°F in Clarksburg to 87°F in New Point. January nights run from about 19°F in Clarksburg to 24°F in Letts.
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.
Decatur 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 Decatur County weather
- What is the hottest temperature recorded at a Decatur County station?
- 108°F at Shelbyville Sewage Plt on July 14, 1936, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Decatur County station?
- -31°F at Rushville on January 17, 1994.
- What is the most rain a Decatur County station has measured in one day?
- 6.5 inches at N Vernon 2 Ese on June 23, 1960.
- What is the biggest one-day snowfall at a Decatur County station?
- 17.01 inches at Rushville on December 22, 2004.
- How many Decatur County towns have a weather page here?
- 14: 9 census-designated places, 4 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 Decatur 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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