Charleston, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charleston, a city in Mississippi County, Missouri.
Overnight
66°F
Patchy Fog
Patchy fog after 4am. Mostly clear, with a low around 66. Northeast wind around 1 mph.
7-day forecast for Charleston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Patchy Fog | 1 mph NE | 0% |
| Tuesday | 87°F | Patchy Fog then Sunny | 3 mph NE | 0% |
| Tuesday Night | 66°F | Mostly Clear | 2 mph ENE | 0% |
| Wednesday | 89°F | Sunny | 1 mph S | 0% |
| Wednesday Night | 70°F | Mostly Clear | 2 mph SSE | 0% |
| Thursday | 90°F | Mostly Sunny | 2 to 6 mph SSW | 12% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 33% |
| Friday | 89°F | Chance Showers And Thunderstorms | 3 to 7 mph SSW | 38% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 1 to 5 mph SSW | 39% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 5 mph SW | 33% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 25% |
| Sunday | 90°F | Mostly Sunny | 2 to 7 mph SSW | 10% |
| Sunday Night | 72°F | Mostly Clear | 2 to 6 mph SSW | 10% |
| Monday | 91°F | Sunny | 3 to 8 mph SSW | 5% |
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 Aug 4, 2026.