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

Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

83°F

28°C

Humidity 55%
Wind Speed Calm
Barometer 30.15 in (1019.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 28 Jun 12:53 pm EDT
Extended Forecast for

8 Miles E Greenback TN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    T-storms
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 98. Calm wind becoming east around 5 mph.

    High: 89 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 89 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 84. West wind around 5 mph. Chance of precipitation is 90%.

    High: 84 °F

    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 70. Chance of precipitation is 80%.

    Low: 70 °F

    T-storms then
    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 98. Calm wind becoming east around 5 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71. Calm wind.
Monday
A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms, mainly between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 84. West wind around 5 mph. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 70. Chance of precipitation is 80%.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Thursday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Independence Day
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Greenback TN
 35.65°N 84.03°W (Elev. 1001 ft)
Last Update:
1:31 pm EDT Jun 28, 2025
Forecast Valid:
1pm EDT Jun 28, 2025-6pm EDT Jul 4, 2025
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation