Illinois Natural History Survey Area Weather Forecast

    • 51
    • 54

    Rain Showers

    • 54
    • 62

    Rain Showers Likely

    • 57
    • 74

    Rain Showers

    • 40
    • 65

    Slight Chance Thunderstorms

    • 45
    • 62

    Mostly Sunny

    • 55
    • 70

    Mostly Sunny

Today 4 Mar Moultrie

Cloudy. Patchy fog in the morning. A chance of Showers and Thunderstorms in the Morning, then Showers with a slight chance of Thunderstorms in the afternoon. Highs in the lower 50s. East Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 4 Mar Moultrie

Showers with a chance of Thunderstorms. Patchy fog. Near steady temperature in the lower 40s. Northeast Winds 5 to 10 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Illinois Natural History Survey Area Temperature Statistics

March Temperature

Mattoon / Charleston, Coles County Memorial Airport (16.8 miles)

  • Lowest 1 March, 2026

    24.1 °F

  • Average March

    33.1 °F

  • Highest 1 March, 2026

    41 °F

Climate (2021–Present)

Mattoon / Charleston, Coles County Memorial Airport (16.8 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.8 °F
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