Merna Weather Forecast

    • 49
    • 73

    Decreasing Clouds

    • 51
    • 76

    Partly Sunny

    • 50
    • 76

    Mostly Cloudy

    • 52
    • 73

    Mostly Cloudy

    • 53
    • 77

    Mostly Sunny

    • 49
    • 74

    Partly Sunny

Today 24 Oct McLean

Mostly sunny. Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 24 Oct McLean

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

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Merna Temperature Statistics

October Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (5 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 (5 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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