Bloomington Weather Forecast

    • 47
    • 50

    Chance Drizzle

    • 40
    • 60

    Mostly Cloudy

    • 53
    • 58

    Chance Rain

    • 16
    • 63

    Rain Likely

    • 14
    • 24

    Mostly Sunny

    • 21
    • 30

    Mostly Cloudy

    • 17
    • 33

    Mostly Cloudy

Today 25 Dec McLean

Cloudy. Patchy fog. Near steady temperature in the upper 40s. East Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 25 Dec McLean

Mostly cloudy with a chance of drizzle. Patchy dense fog early this evening. Areas of dense fog. Lows in the mid 40s. Temperature rising into the mid 50s. Southeast Winds 10 to 15 Mph.

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Bloomington Temperature Statistics

December Temperature

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

  • Lowest 14 December, 2025

    -9 °F

  • Average December

    25.2 °F

  • Highest 23 December, 2025

    57 °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

    52.8 °F

  • Average High 2020–2025

    62.2 °F
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