Waterbury Weather Forecast

    • 22
    • 43

    Mostly Sunny

    • 33
    • 45

    Partly Sunny

    • 30
    • 55

    Partly Sunny

    • 33
    • 45

    Mostly Cloudy

    • 37
    • 52

    Mostly Cloudy

    • 30
    • 60

    Partly Sunny

    • 27
    • 48

    Mostly Cloudy

Today 20 Dec Dixon

Sunny. Highs around 40. Northwest Winds 10 to 15 Mph.

Tonight 20 Dec Dixon

Mostly clear and cooler. Near steady temperature in the mid 20s. South Winds 5 to 10 Mph.

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Waterbury Temperature Statistics

December Temperature

Sioux City, Sioux Gateway Airport (18 miles)

  • Lowest 14 December, 2025

    -11.9 °F

  • Average December

    21.7 °F

  • Highest 9 December, 2025

    48 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (18 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    62.7 °F
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