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.
Oak Grove Temperature Statistics
September Temperature
Bristol / Johnson / Kingsport, Tri-City Regional Airport (4.3 miles)
Lowest 8 September, 2026
58.6 °FAverage September
77.3 °FHighest 4 September, 2026
97.6 °F
Climate (2021–2026)
Bristol / Johnson / Kingsport, Tri-City Regional Airport (4.3 miles)
Average Low 2021–2026
46.6 °FAverage 2021–2026
58 °FAverage High 2021–2026
70.4 °F