Aztalan State Park Weather Forecast

    • 60
    • 71

    Rain Showers Likely

    • 62
    • 76

    Chance Thunderstorms

    • 55
    • 79

    Rain Showers

    • 54
    • 72

    Rain Showers Likely

    • 53
    • 75

    Slight Chance Rain Showers

    • 43
    • 76

    Rain Showers Likely

Today 12 Apr Jefferson

Warmer. Mostly cloudy. Scattered light rain Showers and chance of Thunderstorms until late Afternoon, then numerous light rain Showers and chance of Thunderstorms late in the afternoon. Highs in the lower 70s. Southwest Winds 10 to 20 Mph with Gusts to around 35 Mph. Chance of precipitation 70 percent.

Tonight 12 Apr Jefferson

Not as cool. Mostly cloudy with scattered light rain Showers and slight chance of Thunderstorms. Lows in the mid 40s. South Winds 10 to 15 Mph. Chance of precipitation 50 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

    41.1 °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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