Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East and West

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

92°F

33°C

Humidity	47%
Wind Speed	SW 12 mph
Barometer	29.97 in (1013.3 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	97°F (36°C)
Last update	16 Jul 6:53 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles ESE Karns TN

Tonight
Low: 75 °F
Chance
T-storms
Thursday
High: 92 °F
Chance
T-storms
Thursday Night
Low: 74 °F
Chance
T-storms
Friday
High: 91 °F
Chance
T-storms then
T-storms
Likely
Friday Night
Low: 73 °F
Showers
Likely then
Chance
Showers
Saturday
High: 90 °F
Chance
T-storms then
T-storms
Likely
Saturday Night
Low: 73 °F
Showers
Likely then
Chance
T-storms
Sunday
High: 90 °F
Slight Chance
T-storms then
T-storms
Likely
Sunday Night
Low: 73 °F
T-storms
Likely then
Chance
Showers

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. Southwest wind around 5 mph.

Thursday

A slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 92. Heat index values as high as 100. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.

Thursday Night

A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 30%.

Friday

Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind around 5 mph. Chance of precipitation is 70%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

Saturday

A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny and hot, with a high near 90. Southwest wind around 5 mph. Chance of precipitation is 70%.

Saturday Night

Sunday

Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 60%.

Sunday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

Monday

Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 91. Chance of precipitation is 60%.

Monday Night

Showers and thunderstorms likely. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

Tuesday

A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.

Tuesday Night