Cottonwood Lake Weather Forecast

    • 39
    • 54

    Partly Sunny

    • 30
    • 63

    Mostly Cloudy

    • 24
    • 42

    Partly Sunny

    • 25
    • 43

    Partly Sunny

    • 23
    • 37

    Chance Rain/Snow

    • 22
    • 35

    Slight Chance Snow

Today 13 Nov McHenry

Partly cloudy. Highs in the lower 50s. Southeast Winds around 10 Mph.

Tonight 13 Nov McHenry

Mostly clear. Lows in the mid 30s. South Winds around 10 Mph.

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Cottonwood Lake Temperature Statistics

November Temperature

Harvey Municipal Airport (34.8 miles)

  • Lowest 10 November, 2025

    12.2 °F

  • Average November

    34.8 °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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