Crystal Lake Weather Forecast

    • 44
    • 66

    Decreasing Clouds

    • 46
    • 66

    Mostly Sunny

    • 51
    • 71

    Mostly Sunny

    • 53
    • 73

    Mostly Sunny

    • 56
    • 71

    Mostly Cloudy

    • 53
    • 71

    Slight Chance Rain Showers

Today 19 Oct Hancock

Partly sunny. Highs in the mid 60s. South Winds around 5 Mph.

Tonight 19 Oct Hancock

Partly cloudy. Lows in the mid 40s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

October Temperature

Forest City Municipal Airport (8.1 miles)

  • Lowest 16 October, 2026

    32 °F

  • Average October

    57.8 °F

  • Highest 11 October, 2026

    87.8 °F

Climate (2021–2026)

Forest City Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    47.1 °F

  • Average High 2021–2026

    57.2 °F
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