Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

94°F

34°C

Humidity	54%
Wind Speed	SW 18 G 29 mph
Barometer	29.72 in (1005.0 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	106°F (41°C)
Last update	28 Jul 3:53 pm EDT

More Information:

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

Extended Forecast for

2 Miles NE Knoxville TN

Severe T-storm Watch July 28, 04:39pm until July 28, 08:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch July 28, 04:39pm until July 28, 08:00pm
NOW until 8:00pm Tue
Severe T-storm Watch
This Afternoon
High: 92 °F
Chance
T-storms
Tonight
Low: 70 °F
T-storms
Likely then
Partly Cloudy
Wednesday
High: 86 °F
Mostly Sunny
Wednesday Night
Low: 63 °F
Mostly Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 62 °F
Mostly Clear
Friday
High: 86 °F
Mostly Sunny
Friday Night
Low: 69 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92. Heat index values as high as 102. West wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, mainly before 9pm. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

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

Wednesday Night

Mostly clear, with a low around 63. North wind around 5 mph.

Thursday

Sunny, with a high near 84. Northeast wind around 5 mph.

Thursday Night

Mostly clear, with a low around 62. Calm wind.

Friday

Mostly sunny, with a high near 86. Northeast wind around 5 mph becoming calm.

Friday Night

Mostly cloudy, with a low around 69.