Crystal Lake Weather Forecast

    • 64
    • 80

    Rain Showers Likely

    • 63
    • 82

    Rain Showers

    • 53
    • 77

    Mostly Sunny

    • 59
    • 79

    Mostly Sunny

    • 59
    • 82

    Chance Rain Showers

    • 54
    • 78

    Chance Rain Showers

Today 7 Sep Hancock

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this Morning, then partly sunny with a slight chance of Showers this afternoon. Highs around 80. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 30 percent.

Tonight 7 Sep Hancock

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

September Temperature

Forest City Municipal Airport (8.1 miles)

  • Lowest 1 September, 2026

    62.6 °F

  • Average September

    75.6 °F

  • Highest 4 September, 2026

    89.6 °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

    57.3 °F
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