Lake in the Hills Weather Forecast

    • 60
    • 85

    Partly Sunny

    • 62
    • 85

    Mostly Cloudy

    • 62
    • 79

    Slight Chance Thunderstorms

    • 62
    • 78

    Chance Thunderstorms

    • 60
    • 78

    Chance Rain Showers

    • 57
    • 76

    Slight Chance Thunderstorms

Today 18 Sep McHenry

Mostly sunny. Highs in the mid 80s. Southeast Winds 5 to 10 Mph.

Tonight 18 Sep McHenry

Increasing cloudiness. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake in the Hills Temperature Statistics

September Temperature

Chicago / West Chicago, Dupage Airport (19.9 miles)

  • Lowest 7 September, 2025

    44.1 °F

  • Average September

    64.9 °F

  • Highest 14 September, 2025

    84.9 °F

Climate (2020–Present)

Chicago / West Chicago, Dupage Airport (19.9 miles)

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  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    61.3 °F
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