Mundelein Weather Forecast

    • 29
    • 31

    Decreasing Clouds

    • 34
    • 39

    Mostly Cloudy

    • 32
    • 42

    Chance Drizzle

    • 37
    • 46

    Partly Sunny

    • 35
    • 49

    Chance Rain

    • 29
    • 42

    Chance Rain

    • 19
    • 35

    Chance Snow

Today 4 Jan Lake

Partly cloudy in the Morning, then becoming mostly cloudy. A slight chance of freezing drizzle late. Highs in the lower 30s. West Winds around 5 Mph, becoming south in the afternoon.

Tonight 4 Jan Lake

Mostly cloudy. Near steady temperature in the upper 20s. South Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mundelein Temperature Statistics

January Temperature

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

  • Lowest 1 January, 2026

    10.9 °F

  • Average January

    17.6 °F

  • Highest 2 January, 2026

    23 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.4 °F
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