Jonesborough Weather Forecast

    • 61
    • 79

    Rain Showers Likely

    • 63
    • 85

    Slight Chance Rain Showers

    • 57
    • 80

    Rain Showers Likely

    • 48
    • 73

    Slight Chance Thunderstorms

    • 48
    • 74

    Partly Sunny

    • 49
    • 78

    Partly Sunny

Today 4 Sep Washington

A chance of Showers this morning. A chance of Thunderstorms. Showers likely this afternoon. Highs in the upper 70s. Southwest Winds 10 Mph or less. Chance of rain 70 percent.

Tonight 4 Sep Washington

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the lower 60s. Light Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jonesborough Temperature Statistics

September Temperature

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

  • Lowest 2 September, 2025

    51.1 °F

  • Average September

    65.2 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    69.9 °F
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