Sullivan Regional Airport Weather Forecast

    • 66
    • 78

    Rain Showers Likely

    • 67
    • 80

    Chance Rain Showers

    • 68
    • 87

    Chance Rain Showers

    • 69
    • 88

    Partly Sunny

    • 68
    • 90

    Slight Chance Thunderstorms

    • 63
    • 85

    Chance Rain Showers

Today 10 Sep Franklin

A chance of Thunderstorms. Showers. Much cooler with Highs in the upper 70s. North Winds around 5 Mph. Chance of rain near 100 percent.

Tonight 10 Sep Franklin

Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 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

    83.3 °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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