Old Stone Fort State Park Weather Forecast

    • 68
    • 93

    Chance Thunderstorms

    • 67
    • 86

    Rain Showers Likely

    • 66
    • 90

    Mostly Sunny

    • 68
    • 91

    Mostly Sunny

    • 68
    • 92

    Mostly Sunny

    • 68
    • 92

    Slight Chance Thunderstorms

Today 11 Sep Coffee

Mostly sunny. Highs in the lower 90s. South Winds around 5 Mph.

Tonight 11 Sep Coffee

Mostly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Lows in the upper 60s. South Winds around 5 Mph. Chance of rain 50 percent.

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Old Stone Fort State Park Temperature Statistics

September Temperature

Tullahoma Regional Airport/William Northern Field (9.9 miles)

  • Lowest 1 September, 2026

    66.2 °F

  • Average September

    81.3 °F

  • Highest 3 September, 2026

    98.6 °F

Climate (2021–2026)

Tullahoma Regional Airport/William Northern Field (9.9 miles)

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  • Average Low 2021–2026

    48.7 °F

  • Average 2021–2026

    59.8 °F

  • Average High 2021–2026

    70.5 °F
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