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	56%
Wind Speed	W 7 G 13 mph
Barometer	30.03 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	100°F (38°C)
Last update	17 Jul 7:15 pm EDT

More Information:

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

Extended Forecast for

4 Miles SW Knoxville TN

Tonight
Low: 74 °F
Heavy Rain
Friday
High: 91 °F
Slight Chance
T-storms then
T-storms
Likely
Friday Night
Low: 74 °F
T-storms
Likely then
Chance
Showers
Saturday
High: 89 °F
Chance
T-storms then
T-storms
Likely
Saturday Night
Low: 73 °F
T-storms
Likely then
Chance
Showers
Sunday
High: 91 °F
Slight Chance
T-storms then
T-storms
Likely
Sunday Night
Low: 74 °F
T-storms
Likely then
Chance
T-storms
Monday
High: 91 °F
Slight Chance
T-storms then
T-storms
Likely
Monday Night
Low: 73 °F
T-storms
Likely then
Slight Chance
T-storms

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.

Friday

Showers and thunderstorms likely, mainly after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 101. 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 74. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. Heat index values as high as 95. 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 91. West wind around 5 mph. Chance of precipitation is 60%.

Sunday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm. 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 73. Chance of precipitation is 60%.

Tuesday

A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 93.

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 93.

Wednesday Night

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