De Witt Weather Forecast

    • 73
    • 91

    Slight Chance Thunderstorms

    • 73
    • 91

    Slight Chance Thunderstorms

    • 68
    • 89

    Slight Chance Thunderstorms

    • 63
    • 82

    Partly Sunny

    • 62
    • 82

    Mostly Sunny

    • 63
    • 85

    Mostly Sunny

Today 17 Aug De Witt

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 90s. Southwest Winds around 5 Mph, becoming east in the afternoon. Chance of rain 20 percent. Heat index Values up to 102.

Tonight 17 Aug De Witt

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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De Witt Temperature Statistics

August Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (21.1 miles)

  • Lowest 3 August, 2025

    57 °F

  • Average August

    74.2 °F

  • Highest 9 August, 2025

    90 °F

Climate (2020–Present)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (21.1 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    62.1 °F
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