Aztalan State Park Weather Forecast

    • -3
    • 15

    Snow

    • -4
    • 5

    Cold

    • 8
    • 16

    Mostly Cloudy

    • 3
    • 22

    Slight Chance Snow

    • 4
    • 15

    Mostly Cloudy

    • -2
    • 19

    Mostly Cloudy

Today 18 Jan Jefferson

Cloudy. Chance of light snow in the late morning and early afternoon. Light snow late in the afternoon. Snow accumulation up to 1 inch. Highs around 16. Southwest Winds 5 to 10 Mph. Chance of snow 90 percent.

Tonight 18 Jan Jefferson

Mostly cloudy. Slight chance of light snow after Midnight, then chance of Flurries early in the morning. Lows around 6. West Winds around 10 Mph. Chance of snow 20 percent.

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Aztalan State Park Temperature Statistics

January Temperature

Watertown (9.9 miles)

  • Lowest 4 January, 2026

    4.5 °F

  • Average January

    27.6 °F

  • Highest 9 January, 2026

    55.2 °F

Climate (2021–Present)

Watertown (9.9 miles)

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  • Average Low 2021–2026

    35.6 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    54.6 °F
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