Charleston, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charleston, a city in Mississippi County, Missouri.
Tonight
72°F
Mostly Clear
Mostly clear, with a low around 72. South wind around 1 mph.
7-day forecast for Charleston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Clear | 1 mph S | 1% |
| Saturday | 99°F | Sunny | 1 to 7 mph SW | 1% |
| Saturday Night | 72°F | Mostly Clear | 5 mph SSW | 0% |
| Sunday | 99°F | Sunny | 2 to 9 mph SW | 1% |
| Sunday Night | 72°F | Partly Cloudy | 5 mph NNW | 3% |
| Monday | 91°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 9 mph N | 39% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 to 9 mph N | 39% |
| Tuesday | 82°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 7 to 13 mph N | 21% |
| Tuesday Night | 60°F | Partly Cloudy | 6 to 14 mph N | 8% |
| Wednesday | 79°F | Mostly Sunny | 9 mph N | 3% |
| Wednesday Night | 59°F | Partly Cloudy | 5 to 9 mph NNE | 1% |
| Thursday | 79°F | Sunny | 5 to 9 mph NNE | 3% |
| Thursday Night | 60°F | Partly Cloudy | 3 to 7 mph NNE | 3% |
| Friday | 79°F | Mostly Sunny | 5 to 9 mph NNE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Charleston (36.917, -89.334). Updated through the day.
Growing snapshot for Charleston
Last spring frost
Apr 2
First fall frost
Oct 31
Growing season
211 days
Hardiness zone
7b
More local growing data for Charleston: nearby ZIP 63834 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cairo 3N, Il (10.1 mi from Charleston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.