Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. 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

83°F

28°C

Humidity	53%
Wind Speed	NW 3 mph
Barometer	30.02 in (1015.3 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	20 Aug 1:53 pm EDT

More Information:

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

Extended Forecast for

4 Miles NNE Knoxville TN

This Afternoon
High: 90 °F
Chance
T-storms
Tonight
Low: 70 °F
Showers then
Chance
T-storms
Friday
High: 88 °F
Mostly Cloudy
then Chance
T-storms
Friday Night
Low: 68 °F
Chance
T-storms then
Partly Cloudy
Saturday
High: 89 °F
Mostly Sunny
Saturday Night
Low: 66 °F
Mostly Clear
Sunday
High: 87 °F
Sunny
Sunday Night
Low: 62 °F
Mostly Clear
Monday
High: 86 °F
Sunny then
Slight Chance
Showers

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny and hot, with a high near 90. Heat index values as high as 98. West wind around 5 mph.

Tonight

Showers and thunderstorms before 2am, then a chance of showers. Low around 70. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 88. Calm wind becoming west around 5 mph. Chance of precipitation is 30%.

Friday Night

A 30 percent chance of showers and thunderstorms, mainly between 7pm and 8pm. Partly cloudy, with a low around 68. North wind around 5 mph becoming calm.

Saturday

Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.

Saturday Night

Mostly clear, with a low around 66. West wind around 5 mph becoming calm.

Sunday

Sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 62.

Monday

A 20 percent chance of showers after 2pm. Sunny, with a high near 86.

Monday Night

A 20 percent chance of showers. Partly cloudy, with a low around 62.