Crystal Lake Weather Forecast

    • 57
    • 70

    Chance Thunderstorms

    • 54
    • 80

    Decreasing Clouds

    • 54
    • 80

    Partly Sunny

    • 61
    • 81

    Chance Thunderstorms

    • 61
    • 81

    Rain Showers Likely

    • 62
    • 83

    Rain Showers Likely

    • 63
    • 85

    Chance Thunderstorms

Today 31 May Hancock

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 70s. Southeast Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 31 May Hancock

Partly cloudy late this Evening, then becoming mostly cloudy. Near steady temperature in the lower 60s. East Winds 5 to 10 Mph.

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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

    58.4 °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

    36.6 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    57.4 °F
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