Cottonwood Lake Weather Forecast

    • 28
    • 48

    Increasing Clouds

    • 37
    • 52

    Partly Sunny

    • 35
    • 62

    Mostly Cloudy

    • 24
    • 46

    Partly Sunny

    • 25
    • 43

    Partly Sunny

    • 27
    • 44

    Mostly Cloudy

Today 12 Nov McHenry

Partly cloudy. Highs in the mid 40s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 12 Nov McHenry

Increasing Clouds. Lows in the upper 20s. West Winds around 5 Mph, becoming south after midnight.

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Cottonwood Lake Temperature Statistics

November Temperature

Harvey Municipal Airport (34.8 miles)

  • Lowest 8 November, 2025

    15.8 °F

  • Average November

    35.5 °F

  • Highest 2 November, 2025

    59 °F

Climate (2020–Present)

Harvey Municipal Airport (34.8 miles)

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  • Average Low 2020–2025

    30.4 °F

  • Average 2020–2025

    41.4 °F

  • Average High 2020–2025

    52.1 °F
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