Watts Bar Lake Weather Forecast

    • 72
    • 92

    Chance Thunderstorms

    • 72
    • 93

    Chance Rain Showers

    • 72
    • 93

    Slight Chance Thunderstorms

    • 72
    • 91

    Chance Thunderstorms

    • 72
    • 91

    Rain Showers Likely

    • 72
    • 92

    Thunderstorms Likely

Today 22 Jul Roane

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 90s. Light Winds. Chance of rain 40 percent.

Tonight 22 Jul Roane

Partly cloudy. Lows in the lower 70s. Light Winds.

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Watts Bar Lake Temperature Statistics

July Temperature

Athens McMinn County Airport (25.5 miles)

  • Lowest 3 July, 2025

    66.2 °F

  • Average July

    79.8 °F

  • Highest 15 July, 2025

    95 °F

Climate (2020–Present)

Athens McMinn County Airport (25.5 miles)

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  • Average Low 2020–2025

    49.2 °F

  • Average 2020–2025

    59.8 °F

  • Average High 2020–2025

    71.5 °F
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