Fort Knox, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fort Knox, a community in Hardin County, Kentucky.
Overnight
62°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 62. South wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Fort Knox
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Showers And Thunderstorms | 15 mph S | 98% |
| Wednesday | 70°F | Showers And Thunderstorms | 8 to 15 mph S | 99% |
| Wednesday Night | 49°F | Mostly Cloudy | 7 mph W | 3% |
| Thursday | 67°F | Sunny | 5 to 9 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Friday | 62°F | Partly Sunny | 0 to 9 mph NW | 0% |
| Friday Night | 39°F | Partly Cloudy | 5 to 8 mph NW | 0% |
| Saturday | 56°F | Mostly Sunny | 7 mph N | 0% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 3 mph NW | 0% |
| Sunday | 58°F | Mostly Sunny | 0 to 7 mph NW | 1% |
| Sunday Night | 34°F | Mostly Clear | 0 to 6 mph W | 2% |
| Monday | 60°F | Sunny | 0 to 6 mph SW | 2% |
| Monday Night | 37°F | Clear | 1 to 5 mph SW | 1% |
| Tuesday | 66°F | Sunny | 3 to 7 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Fort Knox (37.892, -85.967). Updated through the day.
Growing snapshot for Fort Knox
Last spring frost
Apr 19
First fall frost
Oct 24
Growing season
186 days
Hardiness zone
7a
More local growing data for Fort Knox: nearby ZIP 40121 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Brandenburg, Ky (8.7 mi from Fort Knox). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.