Clinton Lake Weather Forecast

    • 46
    • 75

    Mostly Sunny

    • 47
    • 74

    Partly Sunny

    • 48
    • 77

    Partly Sunny

    • 49
    • 75

    Mostly Cloudy

    • 49
    • 74

    Mostly Cloudy

    • 51
    • 75

    Partly Sunny

    • 45
    • 74

    Partly Sunny

Today 23 Oct De Witt

Sunny. Near steady temperature in the lower 70s. Southeast Winds around 5 Mph.

Tonight 23 Oct De Witt

Mostly clear. Lows in the upper 40s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clinton Lake Temperature Statistics

October Temperature

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

  • Lowest 17 October, 2026

    36 °F

  • Average October

    61.8 °F

  • Highest 12 October, 2026

    88 °F

Climate (2021–2026)

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