Charleston Weather Forecast

    • 62
    • 83

    Chance Rain Showers

    • 61
    • 83

    Rain Showers Likely

    • 61
    • 87

    Slight Chance Thunderstorms

    • 58
    • 86

    Mostly Sunny

    • 60
    • 85

    Mostly Sunny

    • 64
    • 87

    Chance Rain Showers

Today 30 May Lee

Partly sunny with a chance of Showers. A slight chance of Thunderstorms this afternoon. Near steady temperature in the lower 80s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 30 May Lee

Mostly cloudy with a slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the lower 60s. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Charleston Temperature Statistics

May Temperature

Keokuk Municipal Airport (9.9 miles)

  • Lowest 1 May, 2026

    35.6 °F

  • Average May

    62.9 °F

  • Highest 27 May, 2026

    86 °F

Climate (2021–Present)

Keokuk Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    63.4 °F
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