Kostal-Hawthorne Dam Weather Forecast

    • 24
    • 63

    Chance Snow

    • 11
    • 29

    Snow Likely

    • 12
    • 27

    Mostly Sunny

    • 24
    • 45

    Partly Sunny

    • 19
    • 50

    Mostly Sunny

    • 19
    • 40

    Mostly Cloudy

    • 23
    • 42

    Partly Sunny

Today 27 Dec Hamilton

Mostly sunny late in the morning then becoming partly cloudy. Highs in the lower 60s. West Winds around 10 Mph shifting to the north in the afternoon.

Tonight 27 Dec Hamilton

Windy, cloudy. Slight chance of rain in the Evening, then snow likely. Possibly mixed with rain after midnight. Little or no snow accumulation. Lows in the mid 20s. North Winds around 10 Mph then becoming 20 to 30 Mph with Gusts to around 45 Mph after midnight. Chance of precipitation 60 percent.

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Kostal-Hawthorne Dam Temperature Statistics

December Temperature

Aurora, Aurora Municipal Airport (10.6 miles)

  • Lowest 14 December, 2025

    -0.9 °F

  • Average December

    33.3 °F

  • Highest 16 December, 2025

    63.7 °F

Climate (2020–Present)

Aurora, Aurora Municipal Airport (10.6 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    63.6 °F
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