Aztalan State Park Weather Forecast

    • 45
    • 55

    Rain Showers Likely

    • 60
    • 72

    Rain Showers Likely

    • 61
    • 77

    Rain Showers Likely

    • 59
    • 80

    Rain Showers

    • 51
    • 71

    Chance Rain Showers

    • 52
    • 75

    Chance Rain Showers

Today 11 Apr Jefferson

Mostly sunny until late afternoon then becoming mostly cloudy. A 20 percent chance of light rain Showers late in the afternoon. Highs in the lower 50s. Southeast Winds 5 to 15 Mph.

Tonight 11 Apr Jefferson

Not as cool. Cloudy. Light rain Showers likely and chance of Thunderstorms through around Midnight, then chance of light rain Showers and Thunderstorms after midnight. Lows in the mid 40s. Southeast Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 70 percent.

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Aztalan State Park Temperature Statistics

April Temperature

Watertown (9.9 miles)

  • Lowest 7 April, 2026

    19.6 °F

  • Average April

    39.8 °F

  • Highest 8 April, 2026

    68.4 °F

Climate (2021–Present)

Watertown (9.9 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    54.6 °F
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