Hart County weather, town by town
4 places in Hart County, Kentucky, 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 1934 to 2026. Station extremes, not official state records.
Hart County Weather Facts
Hart County has 4 places on myweatherrock (3 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 108°F at Mammoth Cave on July 27, 1952. The coldest night is -21°F at Mammoth Cave on February 2, 1951. The wettest day brought 8.05 inches of rain at Greensburg on August 1, 1967. The biggest single-day snow measured 7.44 inches at Smiths Grove 0.3 Se on January 23, 2016. Those are station measurements from NOAA's daily records, 1934 to 2026, not official state records. By area the largest place is Horse Cave, about 3 square miles.
About Hart County weather
The map on the Now tab shows every Hart 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 4 Hart 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 28°F. March is the wettest, with rain on about 13 days. July afternoons run from about 86°F in Bonnieville to 90°F in Hardyville.
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.
Hart County weather records
Measured at the NOAA stations serving these towns, daily records 1934 to 2026. Station extremes, not official state records.
Common questions about Hart County weather
- What is the hottest temperature recorded at a Hart County station?
- 108°F at Mammoth Cave on July 27, 1952, in the NOAA daily station records myweatherrock holds (1934 to 2026).
- What is the coldest temperature recorded at a Hart County station?
- -21°F at Mammoth Cave on February 2, 1951.
- What is the most rain a Hart County station has measured in one day?
- 8.05 inches at Greensburg on August 1, 1967.
- What is the biggest one-day snowfall at a Hart County station?
- 7.44 inches at Smiths Grove 0.3 Se on January 23, 2016.
- How many Hart County towns have a weather page here?
- 4: 3 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 Hart 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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