Aztalan State Park Weather Forecast

    • -2
    • 19

    Decreasing Clouds

    • -7
    • 3

    Cold

    • -12
    • 3

    Cold

    • -5
    • 2

    Cold

    • 11
    • 20

    Mostly Cloudy

    • 9
    • 25

    Mostly Cloudy

Today 18 Jan Jefferson

Much Colder. Mostly cloudy in the morning then clearing. Highs around 20. Northwest Winds 10 to 20 Mph.

Tonight 18 Jan Jefferson

Colder. Partly cloudy until early morning then becoming mostly cloudy. Lows around 2 below. Northwest Winds 10 to 15 Mph.

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Aztalan State Park Temperature Statistics

January Temperature

Watertown (9.9 miles)

  • Lowest 15 January, 2025

    -1.7 °F

  • Average January

    17.6 °F

  • Highest 12 January, 2025

    31.6 °F

Climate (2020–Present)

Watertown (9.9 miles)

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  • Average Low 2020–2025

    36.5 °F

  • Average 2020–2025

    46.1 °F

  • Average High 2020–2025

    55.1 °F
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