Aztalan State Park Weather Forecast

    • 44
    • 69

    Mostly Cloudy

    • 50
    • 70

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 58
    • 72

    Rain Showers Likely

    • 58
    • 70

    Chance Rain Showers

    • 53
    • 70

    Chance Rain Showers

Today 26 Sep Jefferson

Mostly sunny. Highs in the upper 60s. Southeast Winds around 5 Mph.

Tonight 26 Sep Jefferson

Partly cloudy. Lows in the mid 40s. East Winds up to 5 Mph.

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Aztalan State Park Temperature Statistics

September Temperature

Watertown (9.9 miles)

  • Lowest 14 September, 2026

    40.8 °F

  • Average September

    65.2 °F

  • Highest 1 September, 2026

    87.3 °F

Climate (2021–2026)

Watertown (9.9 miles)

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  • Average Low 2021–2026

    35.3 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    53.8 °F
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