Sullivan Weather Forecast

    • 42
    • 48

    Mostly Cloudy

    • 37
    • 57

    Partly Sunny

    • 53
    • 59

    Slight Chance Rain

    • 55
    • 67

    Mostly Cloudy

    • 42
    • 64

    Partly Sunny

    • 32
    • 60

    Chance Rain

Today 22 Dec Moultrie

Partly sunny early this Morning, then becoming mostly cloudy. Highs in the upper 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 22 Dec Moultrie

Mostly cloudy and not as cool. Near steady temperature in the lower 40s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan Temperature Statistics

December Temperature

Mattoon / Charleston, Coles County Memorial Airport (19.3 miles)

  • Lowest 14 December, 2025

    -7.1 °F

  • Average December

    26.2 °F

  • Highest 18 December, 2025

    52 °F

Climate (2020–Present)

Mattoon / Charleston, Coles County Memorial Airport (19.3 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    64.5 °F
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