Mundelein Weather Forecast

    • 52
    • 67

    Gradual Clearing

    • 50
    • 68

    Partly Sunny

    • 52
    • 69

    Partly Sunny

    • 56
    • 71

    Partly Sunny

    • 62
    • 72

    Rain Showers Likely

    • 61
    • 70

    Chance Rain Showers

Today 25 Sep Lake

Mostly cloudy. Occasional Sprinkles in the morning. Highs in the upper 60s. East Winds 5 to 10 Mph.

Tonight 25 Sep Lake

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 50s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mundelein Temperature Statistics

September Temperature

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

  • Lowest 14 September, 2026

    50.6 °F

  • Average September

    71.6 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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