Oak Grove Weather Forecast

    • 57
    • 77

    Rain Showers Likely

    • 48
    • 73

    Chance Rain Showers

    • 44
    • 74

    Mostly Sunny

    • 45
    • 74

    Mostly Sunny

    • 47
    • 73

    Partly Sunny

    • 49
    • 76

    Partly Sunny

Today 23 Sep Washington

Partly sunny in the morning. A chance of Showers in the morning and early afternoon. A chance of Thunderstorms in the afternoon. Showers likely late. Highs in the lower to mid 70s. Southeast Winds 10 Mph or less. Chance of rain 70 percent.

Tonight 23 Sep Washington

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a slight chance of Thunderstorms after midnight. A chance of Showers after midnight. Lows in the upper 50s. East Winds 10 Mph or less. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Oak Grove Temperature Statistics

September Temperature

Bristol / Johnson / Kingsport, Tri-City Regional Airport (4.3 miles)

  • Lowest 8 September, 2026

    58.6 °F

  • Average September

    77.3 °F

  • Highest 4 September, 2026

    97.6 °F

Climate (2021–2026)

Bristol / Johnson / Kingsport, Tri-City Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    70.4 °F
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