Smith Mountain Lake Weather Forecast

    • 61
    • 86

    Mostly Sunny

    • 61
    • 88

    Sunny

    • 63
    • 84

    Partly Sunny

    • 62
    • 79

    Partly Sunny

    • 62
    • 81

    Mostly Cloudy

    • 64
    • 83

    Partly Sunny

Today 18 Sep Franklin

Sunny. Highs in the mid 80s. North Winds around 5 Mph.

Tonight 18 Sep Franklin

Mostly clear. Lows around 60. South Winds around 5 Mph, becoming west after midnight.

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Smith Mountain Lake Temperature Statistics

September Temperature

Roanoke, Roanoke Regional Airport (24.9 miles)

  • Lowest 9 September, 2025

    44.1 °F

  • Average September

    66.2 °F

  • Highest 5 September, 2025

    84.9 °F

Climate (2020–Present)

Roanoke, Roanoke Regional Airport (24.9 miles)

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  • Average Low 2020–2025

    49.7 °F

  • Average 2020–2025

    59.4 °F

  • Average High 2020–2025

    69.8 °F
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