Cottonwood Lake National Wildlife Refuge Weather Forecast

    • 42
    • 61

    Becoming Sunny

    • 49
    • 75

    Sunny

    • 53
    • 78

    Breezy

    • 43
    • 74

    Chance Rain Showers

    • 40
    • 62

    Partly Sunny

    • 48
    • 70

    Mostly Sunny

Today 2 May McHenry

Mostly cloudy in the morning then clearing. Highs in the lower 60s. North Winds around 5 Mph, becoming west in the afternoon.

Tonight 2 May McHenry

Mostly clear. Lows around 40. South Winds 5 to 10 Mph.

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Cottonwood Lake National Wildlife Refuge Temperature Statistics

May Temperature

Harvey Municipal Airport (34.2 miles)

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Climate (2020–Present)

Harvey Municipal Airport (34.2 miles)

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  • Average Low 2020–2025

    30 °F

  • Average 2020–2025

    41.1 °F

  • Average High 2020–2025

    51.8 °F
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