Lake Bloomington Weather Forecast

    • 40
    • 57

    Mostly Cloudy

    • 57
    • 72

    Slight Chance Thunderstorms

    • 34
    • 83

    Thunderstorms Likely

    • 26
    • 47

    Mostly Sunny

    • 36
    • 54

    Partly Sunny

    • 44
    • 61

    Partly Sunny

Today 24 Mar McLean

Partly sunny. Highs in the upper 50s. South Winds 5 to 10 Mph.

Tonight 24 Mar McLean

Mostly cloudy. Not as cool with Lows around 40. Southeast Winds 5 to 10 Mph.

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Lake Bloomington Temperature Statistics

March Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (11.2 miles)

  • Lowest 16 March, 2026

    14 °F

  • Average March

    47.8 °F

  • Highest 21 March, 2026

    82 °F

Climate (2021–Present)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (11.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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