Smith Mountain Lake Weather Forecast

    • 69
    • 87

    Mostly Sunny

    • 70
    • 91

    Partly Cloudy

    • 68
    • 86

    Rain Showers Likely

    • 69
    • 83

    Rain Showers Likely

    • 69
    • 87

    Chance Thunderstorms

    • 68
    • 88

    Partly Sunny

    • 69
    • 88

    Mostly Sunny

Today 9 Sep Franklin

Mostly sunny. Near steady temperature in the mid 80s. South Winds 5 to 10 Mph.

Tonight 9 Sep Franklin

Mostly clear. Lows in the upper 60s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Smith Mountain Lake Temperature Statistics

September Temperature

Roanoke, Roanoke Regional Airport (24.9 miles)

  • Lowest 7 September, 2026

    66 °F

  • Average September

    81.1 °F

  • Highest 4 September, 2026

    98.7 °F

Climate (2021–2026)

Roanoke, Roanoke Regional Airport (24.9 miles)

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  • Average Low 2021–2026

    49.6 °F

  • Average 2021–2026

    59.5 °F

  • Average High 2021–2026

    70 °F
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