Cottonwood Lake Weather Forecast

    • 23
    • 38

    Mostly Sunny

    • 24
    • 42

    Partly Sunny

    • 30
    • 44

    Partly Sunny

    • 33
    • 48

    Partly Sunny

    • 35
    • 54

    Partly Sunny

    • 37
    • 54

    Mostly Cloudy

Today 12 Nov McHenry

Decreasing Clouds. Highs in the mid 30s. Southeast Winds 5 to 10 Mph.

Tonight 12 Nov McHenry

Mostly clear. Lows around 20. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Cottonwood Lake Temperature Statistics

November Temperature

Harvey Municipal Airport (34.8 miles)

  • Lowest 5 November, 2026

    26.6 °F

  • Average November

    43.3 °F

  • Highest 7 November, 2026

    62.6 °F

Climate (2021–2026)

Harvey Municipal Airport (34.8 miles)

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  • Average Low 2021–2026

    30.4 °F

  • Average 2021–2026

    41.2 °F

  • Average High 2021–2026

    51.8 °F
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