Sullivan Weather Forecast

    • 69
    • 88

    Mostly Sunny

    • 70
    • 90

    Thunderstorms

    • 67
    • 84

    Chance Thunderstorms

    • 68
    • 87

    Chance Rain Showers

    • 71
    • 89

    Mostly Sunny

    • 73
    • 91

    Mostly Sunny

Today 4 Aug Franklin

Sunny. Near steady temperature in the upper 80s. Southeast Winds around 5 Mph.

Tonight 4 Aug Franklin

Mostly clear. Lows in the upper 60s. Southeast Winds around 5 Mph.

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Sullivan Temperature Statistics

August Temperature

Washington Regional Airport (27.3 miles)

  • Lowest 1 August, 2026

    66.2 °F

  • Average August

    72.4 °F

  • Highest 2 August, 2026

    84.2 °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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