South Williamson, KY Weather & Growing Conditions
This Afternoon
74°F
Light Rain Likely
Rain likely and a slight chance of thunderstorms before 4pm, then a chance of thunderstorms and a chance of rain between 4pm and 5pm, then rain likely and a chance of thunderstorms. Cloudy. High near 74, with temperatures falling to around 69 in the afternoon. South southeast wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Light Rain Likely | 9 mph SSE | 70% |
| Tonight | 59°F | Rain | 0 to 9 mph SSW | 97% |
| Thursday | 71°F | Patchy Fog then Partly Sunny | 0 to 7 mph WSW | 8% |
| Thursday Night | 47°F | Mostly Cloudy | 0 to 3 mph W | 8% |
| Friday | 67°F | Mostly Sunny | 0 to 6 mph W | 2% |
| Friday Night | 43°F | Mostly Cloudy | 5 mph NW | 9% |
| Saturday | 54°F | Mostly Sunny | 2 to 6 mph NW | 9% |
| Saturday Night | 37°F | Partly Cloudy | 0 to 3 mph NNW | 1% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 36°F | Mostly Clear | 3 mph W | 0% |
| Monday | 62°F | Sunny | 3 mph W | 0% |
| Monday Night | 38°F | Mostly Clear | 2 mph SW | 0% |
| Tuesday | 66°F | Sunny | 5 mph SW | 0% |
| Tuesday Night | 41°F | Mostly Clear | 2 mph W | 1% |
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 Nov 4, 2026.