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.

Fair

91°F

33°C

Humidity	59%
Wind Speed	SW 10 G 16 mph
Barometer	30.09 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	102°F (39°C)
Last update	17 Jul 1:35 pm EDT

More Information:

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

Extended Forecast for

3 Miles ENE Powell TN

This Afternoon
High: 91 °F
Chance
T-storms
Tonight
Low: 73 °F
Chance
T-storms
Friday
High: 90 °F
Chance
Showers then
T-storms
Likely
Friday Night
Low: 73 °F
T-storms
Likely
Saturday
High: 88 °F
Chance
T-storms then
T-storms
Saturday Night
Low: 72 °F
T-storms then
Chance
Showers
Sunday
High: 90 °F
Slight Chance
T-storms then
T-storms
Likely
Sunday Night
Low: 73 °F
T-storms
Likely then
Chance
T-storms
Monday
High: 91 °F
Slight Chance
T-storms then
T-storms
Likely

Detailed Forecast

This Afternoon

A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 73. Calm wind.

Friday

Showers and thunderstorms likely, mainly after 5pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 95. Calm wind becoming southwest around 5 mph in the afternoon. 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 becoming calm. Chance of precipitation is 60%.

Saturday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.

Saturday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 72. Southwest wind around 5 mph. Chance of precipitation is 80%.

Sunday

A slight chance of showers, then showers and thunderstorms likely after 8am. 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, mainly before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

Monday

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

Monday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Tuesday

A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92.

Tuesday Night

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

Wednesday

A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.