Calvert City, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calvert City, a city in Marshall County, Kentucky.
Today
87°F
Sunny
Sunny. High near 87, with temperatures falling to around 85 in the afternoon. Northeast wind around 3 mph.
7-day forecast for Calvert City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 3 mph NE | 0% |
| Tonight | 66°F | Mostly Clear | 2 mph NNE | 0% |
| Wednesday | 89°F | Sunny | 1 mph WNW | 0% |
| Wednesday Night | 69°F | Mostly Clear | 1 mph W | 0% |
| Thursday | 90°F | Mostly Sunny | 3 mph SSW | 8% |
| Thursday Night | 72°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 mph S | 24% |
| Friday | 89°F | Chance Showers And Thunderstorms | 5 mph SSW | 35% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 2 mph SW | 37% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 3 mph SW | 32% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 mph S | 32% |
| Sunday | 90°F | Mostly Sunny | 1 to 5 mph SSW | 14% |
| Sunday Night | 72°F | Mostly Clear | 2 mph SSW | 13% |
| Monday | 92°F | Sunny | 2 to 6 mph SSW | 7% |
| Monday Night | 73°F | Partly Cloudy | 3 mph SSW | 7% |
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 Aug 4, 2026.