Glen Avon Weather Forecast

    • 54
    • 67

    Partly Sunny

    • 55
    • 70

    Mostly Cloudy

    • 49
    • 70

    Mostly Cloudy

    • 52
    • 68

    Mostly Cloudy

    • 52
    • 71

    Mostly Cloudy

Today 23 Sep McLean

Mostly cloudy. Highs in the upper 60s. Northeast Winds 10 to 15 Mph.

Tonight 23 Sep McLean

Mostly cloudy. Lows in the mid 50s. Northeast Winds 10 to 15 Mph.

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Glen Avon Temperature Statistics

September Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (18.6 miles)

  • Lowest 14 September, 2026

    52 °F

  • Average September

    75 °F

  • Highest 1 September, 2026

    95 °F

Climate (2021–2026)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (18.6 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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