Jonesborough Weather Forecast

    • 70
    • 94

    Mostly Sunny

    • 69
    • 94

    Mostly Sunny

    • 67
    • 91

    Chance Thunderstorms

    • 65
    • 88

    Chance Thunderstorms

    • 63
    • 85

    Slight Chance Thunderstorms

    • 65
    • 87

    Partly Sunny

Today 3 Sep Washington

Sunny. Highs in the lower to mid 90s. Light Winds.

Tonight 3 Sep Washington

Mostly clear. Lows in the lower 70s. Light Winds.

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Jonesborough Temperature Statistics

September Temperature

Bristol / Johnson / Kingsport, Tri-City Regional Airport (13 miles)

  • Lowest 1 September, 2026

    66 °F

  • Average September

    77.2 °F

  • Highest 1 September, 2026

    91.9 °F

Climate (2021–2026)

Bristol / Johnson / Kingsport, Tri-City Regional Airport (13 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    70.3 °F
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