Mundelein Weather Forecast

    • 5
    • 18

    Increasing Clouds

    • 23
    • 28

    Chance Wintry Mix

    • 15
    • 28

    Chance Snow

    • 7
    • 25

    Chance Snow

    • 14
    • 23

    Snow Likely

    • 21
    • 32

    Snow Likely

    • 11
    • 34

    Chance Rain/Snow

Today 4 Dec Lake

Sunny. Very cold. Highs around 18. Northwest Winds 5 to 10 Mph, becoming west in the afternoon.

Tonight 4 Dec Lake

Clear in the Evening, then becoming partly cloudy. Patchy freezing fog after midnight. Very cold. Lows zero to 6 above zero. Temperature rising to around 11 after midnight. Southwest Winds 5 to 10 Mph, increasing to 10 to 15 Mph after midnight. Wind chill Values as low as 14 below.

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Mundelein Temperature Statistics

December Temperature

Chicago / Wheeling, Pal-Waukee Airport (10.6 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    21.6 °F

  • Highest 1 December, 2025

    30 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (10.6 miles)

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  • Average Low 2020–2025

    44.3 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    61.5 °F
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