Harman US

South Williamson, KY Weather & Growing Conditions

Today
85°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny. High near 85, with temperatures falling to around 83 in the afternoon. East wind 1 to 5 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
Today 85°F Mostly Sunny then Slight Chance Showers And Thunderstorms 1 to 5 mph E 22%
Tonight 69°F Slight Chance Showers And Thunderstorms then Mostly Cloudy 3 mph ESE 15%
Wednesday 84°F Mostly Sunny then Chance Showers And Thunderstorms 3 mph S 54%
Wednesday Night 69°F Chance Showers And Thunderstorms 2 mph S 54%
Thursday 84°F Chance Showers And Thunderstorms 1 to 6 mph SSW 62%
Thursday Night 70°F Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms 3 mph S 62%
Friday 85°F Chance Showers And Thunderstorms 5 mph SSW 49%
Friday Night 69°F Chance Showers And Thunderstorms 3 mph SSW 49%
Saturday 86°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 5 mph SW 54%
Saturday Night 69°F Chance Showers And Thunderstorms 3 mph SSW 54%
Sunday 87°F Chance Showers And Thunderstorms 3 mph SW 28%
Sunday Night 70°F Chance Showers And Thunderstorms then Partly Cloudy 2 mph SSW 27%
Monday 88°F Chance Rain Showers then Chance Showers And Thunderstorms 1 to 5 mph SW 27%
Monday Night 71°F Chance Showers And Thunderstorms 3 mph SW 28%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for South Williamson, KY

Last spring frost
Apr 8
First fall frost
Nov 2
Growing season
206 days
Hardiness zone
7a

Explore more for South Williamson, KY: full frost dates · planting calendar · Kentucky frost dates

Climate data from the nearest NOAA station, Williamson, Wv (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.