Lake Mattoon Weather Forecast

    • 41
    • 45

    Rain

    • 30
    • 51

    Chance Rain

    • 38
    • 45

    Mostly Cloudy

    • 38
    • 58

    Mostly Cloudy

    • 29
    • 52

    Mostly Cloudy

    • 34
    • 44

    Mostly Cloudy

Today 30 Jan Shelby

Cloudy. A chance of rain this Morning, then rain with a slight chance of Thunderstorms this afternoon. Patchy fog this afternoon. Highs in the mid 40s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 90 percent.

Tonight 30 Jan Shelby

A slight chance of Thunderstorms. Rain, mainly in the evening. Areas of fog. Not as cool. Near steady temperature in the mid 40s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

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Lake Mattoon Temperature Statistics

January Temperature

Mattoon / Charleston, Coles County Memorial Airport (13 miles)

  • Lowest 15 January, 2025

    -2.1 °F

  • Average January

    22 °F

  • Highest 28 January, 2025

    45 °F

Climate (2020–Present)

Mattoon / Charleston, Coles County Memorial Airport (13 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    54.9 °F

  • Average High 2020–2025

    64.2 °F
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