Crystal Lake Weather Forecast

    • 43
    • 77

    Chance Thunderstorms

    • 36
    • 56

    Mostly Cloudy

    • 36
    • 55

    Mostly Cloudy

    • 36
    • 57

    Partly Sunny

    • 39
    • 59

    Partly Sunny

    • 43
    • 64

    Partly Sunny

Today 4 May Waukesha

Warmer. Sunny until late Afternoon, then partly sunny with a 50 percent chance of light rain Showers and Thunderstorms late in the afternoon. Highs in the upper 70s. Southwest Winds 10 to 20 Mph.

Tonight 4 May Waukesha

Mostly cloudy. Chance of light rain Showers and Thunderstorms in the evening. Chance of light rain Showers after midnight. Lows in the lower 40s. Northwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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Crystal Lake Temperature Statistics

May Temperature

Watertown (11.8 miles)

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  • Average May

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Climate (2021–Present)

Watertown (11.8 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    54.6 °F
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