Severe Weather and Heavy Rainfall from the High Plains to the Ohio Valley; Heat Continuing in the Central Plains and Southeast

A stationary front will be the focus for daily showers and thunderstorms capable of widely scattered flash flooding and severe weather from the High Plains to the Ohio Valley. Monsoonal thunderstorms could cause local flash flooding across the Southwest and the Great Basin. Dangerous heat continues across the Central Plains and Southeast. Many areas will see their hottest temperatures of the year. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

87°F

31°C

Humidity	63%
Wind Speed	W 8 mph
Barometer	29.95 in (1012.9 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	94°F (34°C)
Last update	12 Aug 4:53 pm EDT

More Information:

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

Extended Forecast for

Knoxville, McGhee Tyson Airport TN

Flood Watch August 12, 05:37pm until August 13, 08:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 12, 05:37pm until August 13, 08:00am
NOW until 8:00am Thu
Flood Watch
This Afternoon
High: 91 °F
Chance
T-storms
Tonight
Low: 73 °F
Chance
T-storms then
Mostly Cloudy
Thursday
High: 91 °F
Chance
Showers then
Chance
T-storms
Thursday Night
Low: 75 °F
Chance
T-storms then
Partly Cloudy
Friday
High: 93 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 76 °F
Chance
T-storms then
Partly Cloudy
Saturday
High: 94 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 74 °F
Chance
T-storms then
Partly Cloudy

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 10 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph.

Thursday

A 40 percent chance of showers and thunderstorms, mainly between noon and 4pm. Partly sunny and hot, with a high near 91. Heat index values as high as 99. Southwest wind 5 to 10 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. South wind around 5 mph.

Friday

A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 93. Southwest wind 5 to 10 mph.

Friday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. South wind around 5 mph.

Saturday

A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 94. South wind around 5 mph becoming west in the afternoon.

Saturday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.

Sunday

Mostly sunny and hot, with a high near 95.

Sunday Night

Mostly clear, with a low around 76.

Monday

A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 96.

Monday Night

A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

Tuesday

A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.