Watts Bar Lake Weather Forecast

    • 34
    • 53

    Increasing Clouds

    • 42
    • 65

    Mostly Cloudy

    • 50
    • 73

    Partly Sunny

    • 53
    • 79

    Mostly Sunny

    • 53
    • 82

    Mostly Cloudy

    • 41
    • 67

    Mostly Cloudy

    • 43
    • 65

    Slight Chance Rain Showers

Today 18 Mar Roane

Partly sunny. A slight chance of Sprinkles this afternoon. Highs in the lower 50s. Light Winds.

Tonight 18 Mar Roane

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 30s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Watts Bar Lake Temperature Statistics

March Temperature

Athens McMinn County Airport (25.5 miles)

  • Lowest 13 March, 2026

    30.2 °F

  • Average March

    58.7 °F

  • Highest 6 March, 2026

    82.4 °F

Climate (2021–Present)

Athens McMinn County Airport (25.5 miles)

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  • Average Low 2021–2026

    49.2 °F

  • Average 2021–2026

    60 °F

  • Average High 2021–2026

    71.7 °F
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