Sullivan County, TN Weather Forecast

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Sullivan County, TN Weather Forecast

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Sullivan County TN weather  - Clear - 62°F
Clear
62°F
Updated 6:03 am
Feels Like 67°F
Humidity 100%
Wind N 0 mph
Barometer  30.15 in
Dew Point 62°F
Sullivan County TN weather  - Clear - 17°C
Clear
17°C
Updated 6:03 am
Feels Like 20°C
Humidity 100%
Wind N 0 km/h
Barometer  102 kPa
Dew Point 17°C

Sullivan County Weather Forecast

REST OF TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY
Sullivan County, TN Weather - Rest Of Tonight Partly Cloudy Sullivan County, TN Weather - Thursday Mostly Sunny Sullivan County, TN Weather - Thursday Night Chance Of Showers Sullivan County, TN Weather - Friday Chance Of T-Storm Sullivan County, TN Weather - Friday Night Partly Cloudy Sullivan County, TN Weather - Saturday Chance Of T-Storm Sullivan County, TN Weather - Saturday Night Chance Of T-Storm Sullivan County, TN Weather - Sunday Chance Of T-Storm Sullivan County, TN Weather - Sunday Night Mostly Clear Sullivan County, TN Weather - Monday Chance Of T-Storm Sullivan County, TN Weather - Monday Night Mostly Clear Sullivan County, TN Weather - Tuesday Chance Of T-Storm
Partly Cloudy Mostly Sunny Chance of Showers Chance of T-Storm Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Mostly Clear Chance of T-Storm Mostly Clear Chance of T-Storm
Lo: 60°FLo: 16°C Hi: 83°FHi: 28°C
Lo: 69°FLo: 21°C Hi: 83°FHi: 28°C
Lo: 69°FLo: 21°C Hi: 83°FHi: 28°C
Lo: 69°FLo: 21°C Hi: 83°FHi: 28°C
Lo: 65°FLo: 18°C Hi: 83°FHi: 28°C
Lo: 65°FLo: 18°C Hi: 87°FHi: 31°C
POP: 20% POP: 40% POP: 80% POP: 50% POP: 50% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 448 AM EDT Thu Sep 10 2026 Sullivan County, TN Weather - WeatherWorld.com

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Issued: 233 AM EDT Thu Sep 10 2026

Key Messages

Updated at 230 AM EDT Thu Sep 10 2026
  • Spotty showers are possible today and tonight mainly the northern Plateau into southwest Virginia. A few rumbles of thunder will be possible.
  • Friday, Saturday and Sunday scattered showers and storms areawide, mainly in the afternoon and evening hours. Locally heavy rainfall is the main threat due to elevated PW values of around 2 inches.
  • Above normal temperatures expected through the forecast period. If CHA hits 90 again today, they will tie the ...