Crystal Lake Weather Forecast

    • 56
    • 81

    Sunny

    • 63
    • 89

    Mostly Sunny

    • 63
    • 94

    Mostly Sunny

    • 62
    • 89

    Partly Sunny

    • 69
    • 90

    Slight Chance Thunderstorms

    • 67
    • 95

    Slight Chance Thunderstorms

Today 8 Aug Dakota

Sunny. Highs around 80. Northeast Winds around 5 Mph.

Tonight 8 Aug Dakota

Clear. Lows in the mid 50s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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  • Temperature Forecast NOAA

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Crystal Lake Temperature Statistics

August Temperature

Sioux City, Sioux Gateway Airport (5 miles)

  • Lowest 4 August, 2022

    57 °F

  • Average August

    80.9 °F

  • Highest 2 August, 2022

    100.9 °F

Climate (2010–Present)

Sioux City, Sioux Gateway Airport (5 miles)

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  • Average Low 2010–Present

    39.4 °F

  • Average 2010–Present

    49.9 °F

  • Average High 2010–Present

    61 °F
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