Sullivan Regional Airport Weather Forecast

    • 73
    • 96

    Chance Thunderstorms

    • 72
    • 95

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 71
    • 95

    Slight Chance Thunderstorms

    • 67
    • 91

    Chance Rain Showers

    • 63
    • 84

    Chance Thunderstorms

Today 16 Sep Franklin

Mostly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. South Winds around 5 Mph. Chance of rain 50 percent. Heat index Values up to 106.

Tonight 16 Sep Franklin

Partly cloudy with scattered Showers and Thunderstorms this Evening, then mostly clear after midnight. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 50 percent.

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Sullivan Regional Airport Temperature Statistics

September Temperature

Washington Regional Airport (26.1 miles)

  • Lowest 8 September, 2026

    62.6 °F

  • Average September

    80.4 °F

  • Highest 5 September, 2026

    102.2 °F

Climate (2021–2026)

Washington Regional Airport (26.1 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    69.7 °F
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