Jamestown Reservoir Weather Forecast

    • 46
    • 73

    Sunny

    • 49
    • 75

    Mostly Sunny

    • 53
    • 79

    Mostly Sunny

    • 54
    • 82

    Mostly Sunny

    • 55
    • 84

    Mostly Sunny

Today 7 Sep Fentress

Mostly sunny early in the morning then becoming sunny. Patchy fog early in the morning. Highs in the lower 70s. North Winds up to 10 Mph.

Tonight 7 Sep Fentress

Mostly clear. Lows in the upper 40s. Northeast Winds up to 5 Mph.

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Jamestown Reservoir Temperature Statistics

September Temperature

Crossville, Crossville Memorial-Whitson Field Airport (35.4 miles)

  • Lowest 1 September, 2025

    57 °F

  • Average September

    65.8 °F

  • Highest 3 September, 2025

    78.1 °F

Climate (2020–Present)

Crossville, Crossville Memorial-Whitson Field Airport (35.4 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    56.5 °F

  • Average High 2020–2025

    66.4 °F
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