Watts Bar Lake Weather Forecast

    • 43
    • 69

    Gradual Clearing

    • 49
    • 72

    Partly Sunny

    • 53
    • 77

    Chance Rain Showers

    • 53
    • 79

    Rain Showers Likely

    • 44
    • 71

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 50
    • 77

    Partly Sunny

Today 7 May Roane

Mostly sunny. Highs in the upper 60s. Light Winds.

Tonight 7 May Roane

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Watts Bar Lake Temperature Statistics

May Temperature

Athens McMinn County Airport (25.5 miles)

  • Lowest 4 May, 2026

    41 °F

  • Average May

    59.4 °F

  • Highest 4 May, 2026

    78.8 °F

Climate (2021–Present)

Athens McMinn County Airport (25.5 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    60.1 °F

  • Average High 2021–2026

    71.9 °F
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