Mundelein Weather Forecast

    • 34
    • 52

    Rain Showers

    • 37
    • 55

    Sunny

    • 42
    • 63

    Mostly Sunny

    • 43
    • 67

    Partly Sunny

    • 47
    • 68

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

Today 16 Oct Lake

Cloudy. A slight chance of Showers late in the morning. Scattered Showers early in the Afternoon, then a slight chance of Showers late. Breezy. Highs in the lower 50s. Northwest Winds 15 to 20 Mph, becoming north 15 to 25 Mph in the afternoon. Gusts up to 35 Mph. Chance of precipitation 50 percent.

Tonight 16 Oct Lake

Partly cloudy in the Evening, then becoming clear. Patchy frost late. Cooler with Lows in the lower 30s. North Winds 15 to 20 Mph with Gusts up to 25 Mph, Diminishing to 5 to 10 Mph after midnight.

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Mundelein Temperature Statistics

October Temperature

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

  • Lowest 3 October, 2026

    45.6 °F

  • Average October

    63.8 °F

  • Highest 12 October, 2026

    88.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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