Aztalan State Park Weather Forecast

    • 30
    • 46

    Breezy

    • 25
    • 37

    Mostly Sunny

    • 30
    • 49

    Partly Sunny

    • 19
    • 38

    Slight Chance Rain Showers

    • 27
    • 34

    Mostly Cloudy

    • 18
    • 44

    Slight Chance Snow Showers

    • 9
    • 25

    Mostly Cloudy

Today 28 Jan Jefferson

Windy. Mostly sunny. Southwest Winds 15 to 30 Mph with Gusts to around 45 Mph.

Tonight 28 Jan Jefferson

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 20s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.

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Aztalan State Park Temperature Statistics

January Temperature

Watertown (9.9 miles)

  • Lowest 24 January, 2025

    -13.9 °F

  • Average January

    16 °F

  • Highest 17 January, 2025

    49.5 °F

Climate (2020–Present)

Watertown (9.9 miles)

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  • Average Low 2020–2025

    36.4 °F

  • Average 2020–2025

    46 °F

  • Average High 2020–2025

    55 °F
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