Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

75°F

24°C

Humidity	94%
Wind Speed	NE 3 mph
Barometer	30.09 in (1017.5 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	1 Jul 4:53 am EDT

More Information:

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

Extended Forecast for

Knoxville, McGhee Tyson Airport TN

Heat Advisory July 1, 05:21am until July 3, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 1, 05:21am until July 3, 09:00pm
NOW until 9:00pm Fri
Heat Advisory
Today
High: 95 °F
Hot
Tonight
Low: 75 °F
Mostly Clear
Thursday
High: 96 °F
Mostly Sunny
then Slight
Chance
T-storms
Thursday Night
Low: 75 °F
Slight Chance
T-storms then
Mostly Clear
Friday
High: 96 °F
Sunny then
Chance
T-storms
Friday Night
Low: 74 °F
Chance
T-storms then
Chance
Showers
Independence Day
High: 95 °F
Mostly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 74 °F
Chance
T-storms

Detailed Forecast

Today

Sunny and hot, with a high near 95. Heat index values as high as 99. Calm wind becoming northeast around 5 mph in the afternoon.

Tonight

Mostly clear, with a low around 75. Northeast wind around 5 mph becoming calm in the evening.

Thursday

A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 100. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 10%.

Thursday Night

A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. East wind around 5 mph becoming calm in the evening.

Friday

A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. Calm wind becoming northeast around 5 mph in the afternoon.

Friday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Independence Day

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Calm wind.

Saturday Night

A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after 8am. Mostly sunny and hot, with a high near 93. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 40%.

Monday

Showers and thunderstorms likely. Mostly sunny and hot, with a high near 91. Chance of precipitation is 70%.

Monday Night

Showers and thunderstorms likely. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

Tuesday

Showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 70%.