Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

79°F

26°C

Humidity	90%
Wind Speed	Calm
Barometer	29.79 in (1007.3 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	28 Jul 11:53 pm EDT

More Information:

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

Extended Forecast for

Knoxville, McGhee Tyson Airport TN

Tonight
Low: 71 °F
Partly Cloudy
Wednesday
High: 87 °F
Mostly Sunny
Wednesday Night
Low: 63 °F
Mostly Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 62 °F
Mostly Clear
Friday
High: 87 °F
Mostly Sunny
Friday Night
Low: 70 °F
Mostly Cloudy
Saturday
High: 86 °F
Mostly Cloudy
then Chance
T-storms
Saturday Night
Low: 71 °F
Showers
Likely

Detailed Forecast

Tonight

Partly cloudy, with a low around 71. West wind around 5 mph becoming north after midnight.

Wednesday

Mostly sunny, with a high near 87. North wind 5 to 10 mph.

Wednesday Night

Mostly clear, with a low around 63. Northeast wind 5 to 10 mph.

Thursday

Sunny, with a high near 84. Northeast wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 62. Northeast wind around 5 mph.

Friday

Mostly sunny, with a high near 87. Northeast wind around 5 mph becoming northwest in the afternoon.

Friday Night

Mostly cloudy, with a low around 70. Calm wind.

Saturday

A 30 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 86.

Saturday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Sunday

A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.

Sunday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Monday

Showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.

Monday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Tuesday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.