Garrison Weather Forecast

    • 72
    • 97

    Slight Chance Thunderstorms

    • 67
    • 93

    Rain Showers Likely

    • 61
    • 85

    Mostly Sunny

    • 64
    • 87

    Mostly Sunny

    • 68
    • 90

    Mostly Sunny

    • 72
    • 93

    Slight Chance Thunderstorms

Today 4 Sep Lewis

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Hot with Highs in the mid 90s. West Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 102.

Tonight 4 Sep Lewis

Mostly clear. A slight chance of Showers and Thunderstorms after midnight. Muggy and Unseasonably warm. Lows in the lower 70s. West Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Garrison Temperature Statistics

September Temperature

Ashland Regional Airport (23.6 miles)

  • Lowest 1 September, 2026

    68 °F

  • Average September

    80.2 °F

  • Highest 1 September, 2026

    96.1 °F

Climate (2021–2026)

Ashland Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    67.4 °F
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