Williamson Airport Weather Forecast

    • -4
    • 6

    Cold

    • 19
    • 29

    Mostly Sunny

    • 30
    • 38

    Partly Sunny

    • 35
    • 41

    Rain Likely

    • 18
    • 53

    Chance Rain

    • 26
    • 35

    Mostly Cloudy

Today 14 Dec Cumberland

Sunny. Much cooler with Highs around 7 above. Northwest Winds 10 to 15 Mph. Wind chill Values as low as 20 below.

Tonight 14 Dec Cumberland

Mostly clear. Cold with Lows around 3 below. West Winds around 5 Mph, becoming south after midnight. Wind chill Values as low as 15 below.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williamson Airport Temperature Statistics

December Temperature

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

  • Lowest 5 December, 2025

    3.9 °F

  • Average December

    26.3 °F

  • Highest 9 December, 2025

    43 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    64.5 °F
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