Heavy Rainfall Along the Central Gulf Coast; Thunderstorms from the Plains to the Central Appalachians; Heat Across the East

A system in the Gulf could produce heavy rainfall and flash flooding for portions of the north-central Gulf Coast into Saturday. Widespread showers and thunderstorms are likely this afternoon into Friday from Central Plains into the mid-Mississippi Valley, Ohio Valley and Central Appalachians. Dangerous heat is expected from the Lower Mississippi Valley to the Mid-Atlantic today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

A Few Clouds

93°F

34°C

Humidity	53%
Wind Speed	SW 13 mph
Barometer	30.02 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	17 Jul 5:15 pm EDT

More Information:

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

Extended Forecast for

4 Miles S Powell TN

This Afternoon
High: 91 °F
Chance
T-storms
Tonight
Low: 74 °F
Chance
T-storms
Friday
High: 90 °F
Chance
Showers then
T-storms
Likely
Friday Night
Low: 73 °F
T-storms
Likely
Saturday
High: 87 °F
Chance
T-storms then
T-storms
Likely
Saturday Night
Low: 73 °F
T-storms
Likely then
Chance
Showers
Sunday
High: 90 °F
Slight Chance
T-storms then
T-storms
Likely
Sunday Night
Low: 74 °F
T-storms
Likely then
Chance
T-storms
Monday
High: 90 °F
Slight Chance
T-storms then
T-storms
Likely

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91. Heat index values as high as 96. Southwest wind around 5 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm.

Friday

Showers and thunderstorms likely, mainly after 5pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 97. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph. Chance of precipitation is 60%.

Saturday

Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 87. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.

Saturday Night

Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Southwest wind around 5 mph. Chance of precipitation is 60%.

Sunday

A slight 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 60%.

Sunday Night

Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

Monday

A slight chance of showers, then showers and thunderstorms likely after 8am. Partly sunny and hot, with a high near 90. Chance of precipitation is 60%.

Monday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly 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 91.

Tuesday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.

Wednesday

A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.

Wednesday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Thursday

A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 94.