Hamilton Weather Forecast

    • 65
    • 93

    Chance Thunderstorms

    • 62
    • 83

    Mostly Sunny

    • 65
    • 86

    Mostly Sunny

    • 70
    • 89

    Mostly Sunny

    • 68
    • 93

    Chance Rain Showers

    • 60
    • 85

    Chance Rain Showers

Today 5 Sep Boone

Mostly sunny late this Morning, then becoming partly cloudy. A slight chance of Showers late this Morning, then a chance of Showers and Thunderstorms this afternoon. Hot with Highs in the lower 90s. West Winds 5 to 10 Mph, becoming northwest late. Chance of rain 40 percent. Heat index Values up to 103.

Tonight 5 Sep Boone

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Muggy. Lows in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Hamilton Temperature Statistics

September Temperature

Cincinnati/Northern Kentucky International Airport (12.4 miles)

  • Lowest 1 September, 2026

    71.7 °F

  • Average September

    84.2 °F

  • Highest 2 September, 2026

    95.6 °F

Climate (2021–2026)

Cincinnati/Northern Kentucky International Airport (12.4 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.7 °F

  • Average High 2021–2026

    66.1 °F
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