Crystal Lake Weather Forecast

    • 6
    • 26

    Chance Snow

    • -18
    • 14

    Decreasing Clouds

    • -15
    • -10

    Cold

    • -11
    • -3

    Cold

    • -14
    • 3

    Cold

    • 1
    • 10

    Cold

    • 1
    • 19

    Partly Sunny

Today 21 Jan Hancock

Partly sunny late this Morning, then becoming mostly cloudy. A chance of Flurries late this Morning, then snow likely this afternoon. Areas of blowing snow this afternoon. Snow accumulation around an inch. Windy with Highs in the upper 20s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, increasing to west 20 to 30 Mph with Gusts up to 60 Mph this afternoon. Chance of snow 70 percent.

Tonight 21 Jan Hancock

Patchy blowing snow this evening. Partly cloudy with a chance of snow this Evening, then mostly cloudy with a slight chance of snow after midnight. Windy with Lows around 7 above. Northwest Winds 20 to 30 Mph with Gusts up to 50 Mph, becoming west around 10 Mph with Gusts up to 25 Mph after midnight. Chance of snow 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

January Temperature

Forest City Municipal Airport (8.1 miles)

  • Lowest 19 January, 2026

    -5.8 °F

  • Average January

    23.2 °F

  • Highest 13 January, 2026

    46.4 °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

    47.2 °F

  • Average High 2021–2026

    57.2 °F
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