P.J. Killian Airport Weather Forecast

    • 12
    • 52

    Rain

    • 22
    • 30

    Partly Sunny

    • 21
    • 44

    Mostly Cloudy

    • 21
    • 32

    Partly Sunny

    • 33
    • 40

    Mostly Cloudy

    • 33
    • 49

    Mostly Cloudy

Today 18 Dec McLean

Rain. A chance of snow Showers. Breezy and not as cool with Highs in the lower 50s. Temperature falling into the upper 30s. Southwest Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of precipitation near 100 percent.

Tonight 18 Dec McLean

Mostly cloudy. A chance of snow and rain Showers in the Evening, then a slight chance of snow Showers after midnight. Little or no snow accumulation. Windy and much cooler with Lows around 13. West Winds 20 to 30 Mph with Gusts up to 40 Mph. Chance of precipitation 40 percent. Wind chill Values as low as 5 below.

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P.J. Killian Airport Temperature Statistics

December Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (9.3 miles)

  • Lowest 14 December, 2025

    -9 °F

  • Average December

    21.1 °F

  • Highest 10 December, 2025

    39.9 °F

Climate (2020–Present)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (9.3 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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