Waterbury Weather Forecast

    • 30
    • 51

    Increasing Clouds

    • 31
    • 53

    Gradual Clearing

    • 29
    • 50

    Mostly Sunny

    • 31
    • 58

    Mostly Sunny

    • 29
    • 47

    Chance Rain/Snow

    • 23
    • 43

    Chance Snow

    • 18
    • 35

    Partly Sunny

Today 4 Jan Dixon

Sunny. Not as cool with Highs in the lower 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 4 Jan Dixon

Mostly clear this Evening, then becoming partly cloudy. Lows around 30. West Winds 5 to 10 Mph, becoming south after midnight.

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Waterbury Temperature Statistics

January Temperature

Sioux City, Sioux Gateway Airport (18 miles)

  • Lowest 1 January, 2026

    17.1 °F

  • Average January

    22.9 °F

  • Highest 1 January, 2026

    28 °F

Climate (2021–Present)

Sioux City, Sioux Gateway Airport (18 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    62.8 °F
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