Normal Weather Forecast

    • 76
    • 96

    Mostly Sunny

    • 76
    • 96

    Mostly Sunny

    • 76
    • 95

    Mostly Sunny

    • 73
    • 94

    Slight Chance Thunderstorms

    • 70
    • 93

    Slight Chance Thunderstorms

    • 66
    • 89

    Partly Sunny

Today 1 Sep McLean

Sunny, hot with Highs in the mid 90s. Southwest Winds around 10 Mph. Heat index Values up to 103.

Tonight 1 Sep McLean

Mostly clear. Lows in the mid 70s. South Winds 5 to 10 Mph.

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Normal Temperature Statistics

September Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (4.3 miles)

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  • Average September

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Climate (2021–2026)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (4.3 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    62.6 °F
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