McHenry Weather Forecast

    • 56
    • 77

    Partly Sunny

    • 58
    • 80

    Mostly Sunny

    • 64
    • 82

    Partly Sunny

    • 65
    • 84

    Partly Sunny

    • 66
    • 85

    Mostly Sunny

    • 69
    • 87

    Mostly Sunny

Today 2 Aug McHenry

Partly cloudy. Highs in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 2 Aug McHenry

Clear. Lows in the mid 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

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McHenry Temperature Statistics

August Temperature

Chicago/Waukegan Regional Airport (21.1 miles)

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  • Average August

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Climate (2020–Present)

Chicago/Waukegan Regional Airport (21.1 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59.5 °F
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