Crystal Lake Weather Forecast

    • 46
    • 59

    Rain Showers

    • 41
    • 62

    Slight Chance Rain Showers

    • 39
    • 54

    Mostly Cloudy

    • 44
    • 56

    Chance Rain Showers

    • 44
    • 60

    Chance Rain Showers

    • 49
    • 69

    Partly Sunny

    • 46
    • 70

    Chance Rain Showers

Today 1 May McHenry

Cloudy. Cloudy. A slight chance of drizzle early afternoon. Isolated Showers in the late afternoon. Highs in the upper 50s. South Winds 10 to 15 Mph, becoming west with Gusts up to 25 Mph. Chance of precipitation 20 percent.

Tonight 1 May McHenry

Cloudy. Isolated Showers late in the evening. Scattered Showers after midnight. Lows in the mid 40s. Northwest Winds around 5 Mph, becoming northeast after midnight. Chance of precipitation 40 percent.

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Crystal Lake Temperature Statistics

May Temperature

Chicago / Wheeling, Pal-Waukee Airport (22.4 miles)

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  • Average May

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Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (22.4 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.5 °F
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