Williamstown, KY Weather & Growing Conditions
This Afternoon
88°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 88. South wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Chance Showers And Thunderstorms | 7 mph S | 32% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 7 mph S | 62% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Rain Showers | 6 to 9 mph SW | 16% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 8 mph N | 41% |
| Monday | 77°F | Chance Rain Showers | 9 mph NE | 41% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 9 mph NE | 52% |
| Tuesday | 72°F | Chance Rain Showers | 7 mph NE | 41% |
| Tuesday Night | 58°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph NE | 45% |
| Wednesday | 72°F | Chance Showers And Thunderstorms | 6 mph N | 45% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 6 mph N | 45% |
| Thursday | 71°F | Partly Sunny | 3 to 7 mph N | 12% |
| Thursday Night | 55°F | Mostly Cloudy | 6 mph N | 12% |
| Friday | 71°F | Mostly Sunny | 7 mph NE | 8% |
| Friday Night | 53°F | Partly Cloudy | 7 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Williamstown, KY
Last spring frost
Apr 11
First fall frost
Oct 29
Growing season
199 days
Hardiness zone
6b
Explore more for Williamstown, KY: full frost dates · planting calendar · Kentucky frost dates
Climate data from the nearest NOAA station, Williamstown, Ky (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.