Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

81°F

27°C

Humidity	69%
Wind Speed	Calm
Barometer	30.05 in (1016.1 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	21 Aug 11:53 am EDT

More Information:

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

Extended Forecast for

4 Miles SE Maryville TN

Today
High: 88 °F
Chance
T-storms
Tonight
Low: 70 °F
Chance
T-storms then
Slight Chance
Showers
Saturday
High: 88 °F
Mostly Sunny
Saturday Night
Low: 67 °F
Slight Chance
T-storms then
Slight Chance
Showers
Sunday
High: 86 °F
Sunny
Sunday Night
Low: 63 °F
Mostly Clear
Monday
High: 86 °F
Mostly Sunny
Monday Night
Low: 63 °F
Slight Chance
Showers
Tuesday
High: 85 °F
Slight Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.

Saturday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly clear, with a low around 67. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Sunday

Sunny, with a high near 86. Calm wind becoming northwest around 5 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 63. North wind around 5 mph becoming calm in the evening.

Monday

Mostly sunny, with a high near 86. Calm wind becoming northwest around 5 mph in the afternoon.

Monday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 63.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

Tuesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66.