Crystal Lake Weather Forecast

    • 56
    • 81

    Rain Showers

    • 46
    • 74

    Rain Showers

    • 38
    • 58

    Mostly Cloudy

    • 41
    • 60

    Partly Sunny

    • 45
    • 64

    Mostly Cloudy

    • 50
    • 69

    Slight Chance Thunderstorms

Today 17 May Hancock

Mostly cloudy with a chance of Showers and Thunderstorms. Windy with Highs in the lower 80s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph, increasing to 20 to 30 Mph with Gusts up to 40 Mph this afternoon. Chance of rain 50 percent.

Tonight 17 May Hancock

A chance of Thunderstorms. Showers likely. Windy with Lows in the mid 50s. South Winds 20 to 30 Mph with Gusts up to 40 Mph, Diminishing to 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

May Temperature

Forest City Municipal Airport (8.1 miles)

  • Lowest 2 May, 2026

    28.4 °F

  • Average May

    53.7 °F

  • Highest 15 May, 2026

    86 °F

Climate (2021–Present)

Forest City Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    36.7 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    57.4 °F
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