Crystal Lake Weather Forecast

    • 23
    • 32

    Mostly Cloudy

    • 2
    • 29

    Mostly Cloudy

    • 10
    • 18

    Partly Sunny

    • 10
    • 19

    Mostly Cloudy

    • 18
    • 24

    Mostly Cloudy

    • 19
    • 32

    Partly Sunny

Today 30 Dec Hancock

Mostly cloudy early this Morning, then becoming partly sunny. A chance of Flurries. Not as cool with Highs in the lower 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 30 Dec Hancock

Mostly cloudy. Not as cool with Lows in the lower 20s. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

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Crystal Lake Temperature Statistics

December Temperature

Forest City Municipal Airport (8.1 miles)

  • Lowest 4 December, 2025

    -14.8 °F

  • Average December

    21 °F

  • Highest 16 December, 2025

    39.2 °F

Climate (2020–Present)

Forest City Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    47.3 °F

  • Average High 2020–2025

    57.3 °F
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