Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

83°F

28°C

Humidity 70%
Wind Speed Vrbl 3 mph
Barometer 29.98 in (1013.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 5 Sep 12:53 am EDT
Extended Forecast for

3 Miles SE Friendsville TN

Heat Advisory September 5, 01:47am until September 5, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 5, 01:47am until September 5, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Overnight

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Sunny and hot, with a high near 95. Heat index values as high as 106. Calm wind becoming northwest around 5 mph.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am.  Partly cloudy, with a low around 72. East wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 92. Heat index values as high as 101. Calm wind becoming north around 5 mph in the afternoon.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. Northeast wind 5 to 10 mph.

    Low: 68 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 90. Calm wind.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am.  Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 74. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny and hot, with a high near 95. Heat index values as high as 106. Calm wind becoming northwest around 5 mph.
Saturday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Partly cloudy, with a low around 72. East wind around 5 mph becoming calm. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 92. Heat index values as high as 101. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 68. Northeast wind 5 to 10 mph.
Labor Day
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Calm wind.
Monday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm. Chance of precipitation is 30%.
Tuesday
Mostly sunny and hot, with a high near 90.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
A 20 percent chance of showers before 2pm. Sunny and hot, with a high near 91.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 92.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Friendsville TN
 35.72°N 84.1°W (Elev. 1001 ft)
1:06 am EDT Sep 5, 2026
1am EDT Sep 5, 2026-6pm EDT Sep 11, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database