Cottonwood Lake Weather Forecast

    • 35
    • 46

    Rain Showers Likely

    • 42
    • 59

    Partly Sunny

    • 44
    • 71

    Partly Sunny

    • 25
    • 58

    Chance Rain/Snow

    • 21
    • 37

    Breezy

    • 26
    • 46

    Partly Sunny

Today 13 Apr McHenry

Patchy fog in the morning. Cloudy with a 50 percent chance of rain Showers. Cooler. Highs in the mid 40s. East Winds 10 to 15 Mph.

Tonight 13 Apr McHenry

Rain Showers likely. A chance of snow after midnight. Lows in the lower 30s. Northeast Winds 5 to 10 Mph. Chance of precipitation 70 percent.

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Cottonwood Lake Temperature Statistics

April Temperature

Harvey Municipal Airport (34.8 miles)

  • Lowest 6 April, 2026

    15.8 °F

  • Average April

    31.9 °F

  • Highest 10 April, 2026

    55.4 °F

Climate (2021–Present)

Harvey Municipal Airport (34.8 miles)

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  • Average Low 2021–2026

    30.3 °F

  • Average 2021–2026

    41.2 °F

  • Average High 2021–2026

    51.9 °F
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