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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

WhenTempForecastWindPrecip
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

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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.