Mundelein Weather Forecast

    • 58
    • 69

    Chance Rain Showers

    • 57
    • 79

    Mostly Cloudy

    • 56
    • 72

    Partly Sunny

    • 59
    • 79

    Chance Thunderstorms

    • 52
    • 70

    Partly Sunny

    • 53
    • 65

    Rain Showers Likely

Today 9 Oct Lake

Mostly cloudy. A slight chance of Showers late in the morning. A slight chance of Thunderstorms in the late morning and afternoon. A chance of Showers in the afternoon. Highs in the upper 60s. Southeast Winds 5 to 10 Mph. Chance of precipitation 50 percent.

Tonight 9 Oct Lake

Partly cloudy in the Evening, then becoming clear. Near steady temperature in the upper 50s. Southeast Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mundelein Temperature Statistics

October Temperature

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

  • Lowest 5 October, 2026

    45 °F

  • Average October

    60.9 °F

  • Highest 7 October, 2026

    78.1 °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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