Crystal Lake Weather Forecast

    • 56
    • 81

    Rain Showers

    • 45
    • 71

    Rain Showers

    • 37
    • 57

    Partly Sunny

    • 40
    • 60

    Partly Sunny

    • 43
    • 64

    Mostly Cloudy

    • 48
    • 69

    Slight Chance Thunderstorms

    • 52
    • 75

    Chance Thunderstorms

Today 17 May Hancock

Mostly cloudy with a chance of Showers and Thunderstorms. Windy. Near steady temperature in the lower 70s. Southeast Winds 20 to 30 Mph with Gusts up to 40 Mph. Chance of rain 50 percent.

Tonight 17 May Hancock

Thunderstorms likely. Showers. Lows in the mid 50s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 90 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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