Clarkson, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarkson, a city in Grayson County, Kentucky.
This Afternoon
79°F
Mostly Sunny
Mostly sunny, with a high near 79. South wind around 9 mph.
7-day forecast for Clarkson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Mostly Sunny | 9 mph S | 2% |
| Tonight | 61°F | Showers And Thunderstorms | 10 mph S | 98% |
| Wednesday | 72°F | Showers And Thunderstorms | 5 to 10 mph SW | 96% |
| Wednesday Night | 46°F | Partly Cloudy | 3 mph SW | 2% |
| Thursday | 69°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 42°F | Partly Cloudy | 1 mph NW | 0% |
| Friday | 65°F | Mostly Sunny | 0 to 6 mph NW | 8% |
| Friday Night | 38°F | Mostly Cloudy | 3 mph N | 1% |
| Saturday | 57°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph N | 1% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph NW | 7% |
| Sunday Night | 31°F | Mostly Clear then Slight Chance Rain Showers | 2 mph NW | 15% |
| Monday | 62°F | Sunny | 1 to 5 mph NW | 6% |
| Monday Night | 34°F | Mostly Clear | 2 mph SW | 1% |
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 Nov 4, 2026.