Aztalan State Park Weather Forecast

    • 60
    • 67

    Rain Showers

    • 53
    • 66

    Chance Rain Showers

    • 48
    • 63

    Mostly Cloudy

    • 46
    • 62

    Partly Sunny

    • 48
    • 65

    Partly Sunny

    • 48
    • 67

    Partly Sunny

Today 19 Sep Jefferson

Showers and chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Highs around 70. Southeast Winds 5 to 10 Mph. Chance of precipitation 80 percent.

Tonight 19 Sep Jefferson

Showers and chance of Thunderstorms until early Morning, then Showers likely early in the morning. Lows in the upper 50s. Northeast Winds 5 to 15 Mph. Chance of precipitation 90 percent.

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Aztalan State Park Temperature Statistics

September Temperature

Watertown (9.9 miles)

  • Lowest 14 September, 2026

    40.8 °F

  • Average September

    68 °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

    53.9 °F
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