Clinton Lake Weather Forecast

    • 72
    • 89

    Increasing Clouds

    • 71
    • 88

    Slight Chance Thunderstorms

    • 71
    • 87

    Chance Thunderstorms

    • 69
    • 86

    Rain Showers Likely

    • 67
    • 86

    Chance Thunderstorms

    • 69
    • 85

    Chance Rain Showers

    • 70
    • 87

    Chance Rain Showers

Today 9 Aug De Witt

Sunny. Near steady temperature in the upper 80s. South Winds around 15 Mph. Heat index Values up to 101.

Tonight 9 Aug De Witt

Partly cloudy. Lows in the lower 70s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clinton Lake Temperature Statistics

August Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (22.4 miles)

  • Lowest 3 August, 2025

    57 °F

  • Average August

    70.8 °F

  • Highest 7 August, 2025

    87.1 °F

Climate (2020–Present)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (22.4 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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