National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

66°F

19°C

Humidity 84%
Wind Speed Calm
Barometer 29.97 in (1013.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Jun 3:53 am EDT
Extended Forecast for

Lenoir City TN

  • Overnight

    Overnight: Clear, with a low around 63. Calm wind.

    Low: 63 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 71. Southwest wind around 5 mph.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms. High near 84. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 84 °F

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 67. Southwest wind 5 to 10 mph. Chance of precipitation is 90%.

    Low: 67 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 8am. Mostly sunny, with a high near 83. Northwest wind around 5 mph.

    High: 83 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. North wind around 5 mph becoming calm.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 63. Calm wind.
Sunday
Sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 71. Southwest wind around 5 mph.
Monday
Showers and thunderstorms. High near 84. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 67. Southwest wind 5 to 10 mph. Chance of precipitation is 90%.
Tuesday
A 30 percent chance of showers, mainly before 8am. Mostly sunny, with a high near 83. Northwest wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 63. North wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lenoir City TN
 35.8°N 84.26°W (Elev. 879 ft)
Last Update:
2:26 am EDT Jun 21, 2026
Forecast Valid:
3am EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation