Charleston, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charleston, a city in Mississippi County, Missouri.
This Afternoon
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. Southwest wind around 7 mph.
7-day forecast for Charleston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 7 mph SW | 0% |
| Tonight | 72°F | Mostly Clear | 3 mph SSW | 0% |
| Sunday | 97°F | Mostly Sunny | 1 to 7 mph WSW | 1% |
| Sunday Night | 71°F | Partly Cloudy | 3 mph ESE | 14% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph NE | 22% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph NNE | 22% |
| Tuesday | 81°F | Mostly Sunny | 7 to 13 mph N | 14% |
| Tuesday Night | 59°F | Partly Cloudy | 6 to 14 mph N | 9% |
| Wednesday | 79°F | Mostly Sunny | 9 mph N | 1% |
| Wednesday Night | 58°F | Partly Cloudy | 3 to 9 mph N | 0% |
| Thursday | 79°F | Mostly Sunny | 3 to 8 mph NNE | 1% |
| Thursday Night | 59°F | Partly Cloudy | 2 to 6 mph NNE | 1% |
| Friday | 81°F | Mostly Sunny | 3 to 8 mph NNE | 4% |
| Friday Night | 60°F | Partly Cloudy | 3 to 7 mph NNE | 4% |
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 20, 2026.