Lake Charleston Weather Forecast

    • 57
    • 79

    Thunderstorms

    • 59
    • 82

    Thunderstorms Likely

    • 46
    • 70

    Slight Chance Thunderstorms

    • 48
    • 64

    Partly Sunny

    • 49
    • 68

    Chance Thunderstorms

    • 51
    • 70

    Slight Chance Rain Showers

Today 7 May Coles

Showers and Thunderstorms in the Morning, then partly sunny with a chance of Showers and Thunderstorms in the afternoon. Highs around 80. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 7 May Coles

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature in the mid 60s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Charleston Temperature Statistics

May Temperature

Mattoon / Charleston, Coles County Memorial Airport (6.8 miles)

  • Lowest 4 May, 2024

    55 °F

  • Average May

    69.3 °F

  • Highest 2 May, 2024

    83.6 °F

Climate (2019–Present)

Mattoon / Charleston, Coles County Memorial Airport (6.8 miles)

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  • Average Low 2019–2024

    45.9 °F

  • Average 2019–2024

    54.9 °F

  • Average High 2019–2024

    64 °F
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