Clarkson, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarkson, a city in Grayson County, Kentucky.
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind around 5 mph.
7-day forecast for Clarkson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 mph NE | 0% |
| Tonight | 67°F | Mostly Clear | 2 mph N | 2% |
| Wednesday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 2 mph N | 16% |
| Wednesday Night | 69°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 mph S | 16% |
| Thursday | 90°F | Mostly Sunny | 2 to 6 mph SW | 9% |
| Thursday Night | 71°F | Mostly Cloudy then Chance Showers And Thunderstorms | 3 mph S | 37% |
| Friday | 88°F | Chance Showers And Thunderstorms | 6 mph SW | 43% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 3 mph S | 43% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 40% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 2 mph S | 40% |
| Sunday | 89°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 20% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph S | 20% |
| Monday | 90°F | Mostly Sunny | 2 to 6 mph SW | 11% |
| Monday Night | 72°F | Partly Cloudy | 3 mph SW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Clarkson (37.493, -86.227). Updated through the day.
Growing snapshot for Clarkson
Last spring frost
Apr 26
First fall frost
Oct 15
Growing season
172 days
Hardiness zone
7a
More local growing data for Clarkson: nearby ZIP 42754 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Leitchfield 2 N, Ky (2.7 mi from Clarkson). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.