Harrison Weather Forecast

    • 64
    • 92

    Slight Chance Thunderstorms

    • 63
    • 91

    Slight Chance Thunderstorms

    • 64
    • 88

    Chance Thunderstorms

    • 62
    • 82

    Chance Thunderstorms

    • 63
    • 83

    Chance Thunderstorms

    • 64
    • 84

    Chance Thunderstorms

Today 16 Sep Boone County Except Southwest

Partly cloudy. A slight chance of Showers and Thunderstorms this morning. A chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Light and variable Winds, becoming north around 5 Mph this afternoon. Chance of rain 30 percent. Average rainfall less than 1/10 inch.

Tonight 16 Sep Boone County Except Southwest

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 60s. Northwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 30 percent. Average rainfall less than 1/10 inch.

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Harrison Temperature Statistics

September Temperature

Harrison, Boone County Airport (3.1 miles)

  • Lowest 7 September, 2025

    51.1 °F

  • Average September

    70.8 °F

  • Highest 12 September, 2025

    93 °F

Climate (2020–Present)

Harrison, Boone County Airport (3.1 miles)

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  • Average Low 2020–2025

    49.3 °F

  • Average 2020–2025

    59.5 °F

  • Average High 2020–2025

    70.3 °F
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