Clinton Lake State Recreation Area Weather Forecast

    • 63
    • 82

    Increasing Clouds

    • 68
    • 78

    Chance Rain Showers

    • 63
    • 81

    Rain Showers

    • 50
    • 71

    Chance Rain Showers

    • 50
    • 70

    Mostly Cloudy

    • 47
    • 70

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

Today 29 Sep De Witt

Sunny. Near steady temperature in the lower 80s. South Winds 5 to 10 Mph.

Tonight 29 Sep De Witt

Mostly cloudy. Not as cool with Lows in the mid 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clinton Lake State Recreation Area Temperature Statistics

September Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (21.7 miles)

  • Lowest 27 September, 2026

    48.9 °F

  • Average September

    71.6 °F

  • Highest 1 September, 2026

    95 °F

Climate (2021–2026)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (21.7 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    62.7 °F
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