Watts Bar Lake Weather Forecast

    • 64
    • 90

    Mostly Sunny

    • 62
    • 87

    Mostly Sunny

    • 63
    • 87

    Partly Sunny

    • 67
    • 87

    Slight Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

    • 67
    • 87

    Chance Thunderstorms

Today 22 Aug Roane

Sunny. Highs around 90. Light Winds.

Tonight 22 Aug Roane

Partly cloudy in the Evening, then clearing. Lows in the mid 60s. Light Winds.

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Watts Bar Lake Temperature Statistics

August Temperature

Athens McMinn County Airport (25.5 miles)

  • Lowest 19 August, 2026

    64.4 °F

  • Average August

    78.3 °F

  • Highest 16 August, 2026

    95 °F

Climate (2021–2026)

Athens McMinn County Airport (25.5 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    72 °F
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