Calvert City, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvert City, a city in Marshall County, Kentucky.
Tonight
72°F
Mostly Clear
Mostly clear, with a low around 72. North northeast wind around 1 mph.
7-day forecast for Calvert City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Clear | 1 mph NNE | 11% |
| Saturday | 99°F | Sunny | 0 to 5 mph WSW | 3% |
| Saturday Night | 72°F | Mostly Clear | 2 mph SSW | 1% |
| Sunday | 98°F | Sunny | 2 to 6 mph WSW | 0% |
| Sunday Night | 71°F | Partly Cloudy | 3 mph N | 2% |
| Monday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph N | 26% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 6 mph NNE | 40% |
| Tuesday | 82°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 9 mph N | 27% |
| Tuesday Night | 60°F | Partly Cloudy | 3 to 9 mph N | 7% |
| Wednesday | 79°F | Mostly Sunny | 6 mph N | 6% |
| Wednesday Night | 58°F | Partly Cloudy | 5 mph NNE | 5% |
| Thursday | 79°F | Mostly Sunny | 2 to 6 mph NNE | 4% |
| Thursday Night | 59°F | Partly Cloudy | 5 mph NNE | 4% |
| Friday | 79°F | Mostly Sunny | 3 to 7 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Calvert City (37.046, -88.396). Updated through the day.
Growing snapshot for Calvert City
Last spring frost
Apr 3
First fall frost
Oct 30
Growing season
207 days
Hardiness zone
7a
More local growing data for Calvert City: nearby ZIP 42029 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Smithland L&D, Il (10.8 mi from Calvert City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.