Sullivan Weather Forecast

    • 71
    • 96

    Decreasing Clouds

    • 66
    • 91

    Rain Showers Likely

    • 59
    • 77

    Rain Showers Likely

    • 53
    • 70

    Mostly Cloudy

    • 53
    • 72

    Partly Sunny

    • 55
    • 75

    Partly Sunny

Today 19 Sep Franklin

Mostly sunny. Hot with Highs in the upper 90s. Southwest Winds around 5 Mph.

Tonight 19 Sep Franklin

Partly cloudy. Lows in the lower 70s. Southwest Winds around 5 Mph.

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Sullivan Temperature Statistics

September Temperature

Washington Regional Airport (27.3 miles)

  • Lowest 8 September, 2026

    62.6 °F

  • Average September

    80.8 °F

  • Highest 5 September, 2026

    102.2 °F

Climate (2021–2026)

Washington Regional Airport (27.3 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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