Kostal-Hawthorne Dam Weather Forecast

    • 53
    • 70

    Chance Rain Showers

    • 58
    • 77

    Mostly Sunny

    • 59
    • 79

    Slight Chance Thunderstorms

    • 60
    • 82

    Slight Chance Thunderstorms

    • 54
    • 81

    Mostly Sunny

    • 56
    • 79

    Sunny

Today 18 Sep Hamilton

Partly cloudy in the morning then becoming mostly cloudy. A 30 percent chance of Showers. Highs in the lower 70s. Southwest Winds around 10 Mph.

Tonight 18 Sep Hamilton

Partly cloudy. Lows in the mid 50s. Light Winds.

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Kostal-Hawthorne Dam Temperature Statistics

September Temperature

Aurora, Aurora Municipal Airport (10.6 miles)

  • Lowest 6 September, 2025

    43.2 °F

  • Average September

    67.1 °F

  • Highest 13 September, 2025

    94.5 °F

Climate (2020–Present)

Aurora, Aurora Municipal Airport (10.6 miles)

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  • Average Low 2020–2025

    40.2 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    63.4 °F
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