Crystal Lake Weather Forecast

    • 12
    • 32

    Mostly Cloudy

    • 18
    • 26

    Mostly Cloudy

    • 18
    • 34

    Slight Chance Freezing Drizzle

    • 16
    • 37

    Partly Sunny

    • 21
    • 40

    Chance Snow

    • 10
    • 36

    Chance Snow

    • 13
    • 36

    Partly Sunny

Today 3 Feb Dakota

Mostly cloudy with scattered Flurries with patchy very light freezing drizzle. Much cooler with Highs in the lower 30s. North Winds around 20 Mph with Gusts up to 30 Mph.

Tonight 3 Feb Dakota

Mostly cloudy. Much Colder with Lows around 12. North Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

February Temperature

Sioux City, Sioux Gateway Airport (5 miles)

  • Lowest 1 February, 2025

    26.1 °F

  • Average February

    35.3 °F

  • Highest 1 February, 2025

    44.1 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (5 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    62.4 °F
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