Bloomington Weather Forecast

    • 9
    • 30

    Snow

    • -6
    • 16

    Snow

    • -8
    • 6

    Cold

    • 17
    • 25

    Partly Sunny

    • 30
    • 36

    Mostly Cloudy

    • 34
    • 44

    Mostly Cloudy

Today 12 Dec McLean

Mostly cloudy. Highs around 30. Northeast Winds around 5 Mph, becoming northwest this afternoon.

Tonight 12 Dec McLean

Cloudy, cooler with Lows around 9 above. West Winds 10 to 15 Mph. Wind chill Values as low as 2 below after midnight.

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Bloomington Temperature Statistics

December Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (3.7 miles)

  • Lowest 4 December, 2025

    1 °F

  • Average December

    22.7 °F

  • Highest 9 December, 2025

    37 °F

Climate (2020–Present)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (3.7 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    62.2 °F
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