Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

76°F

24°C

Humidity	85%
Wind Speed	E 3 mph
Barometer	30.02 in (1015.4 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	25 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

Overnight
Low: 71 °F
Showers
Sunday
High: 88 °F
Chance
Showers then
Chance
T-storms
Sunday Night
Low: 71 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 90 °F
Chance
Showers
Monday Night
Low: 74 °F
Partly Cloudy
Tuesday
High: 92 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 72 °F
Chance
T-storms
Wednesday
High: 87 °F
Slight Chance
Showers then
Mostly Sunny
Wednesday Night
Low: 67 °F
Mostly Clear

Detailed Forecast

Overnight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 71. Southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.

Sunday Night

A 20 percent chance of showers and thunderstorms, mainly between 8pm and 10pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening.

Monday

A 30 percent chance of showers before 2pm. Mostly sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 74. South wind 5 to 10 mph.

Tuesday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 72. West wind 5 to 10 mph. Chance of precipitation is 50%.

Wednesday

A 10 percent chance of showers before 8am. Mostly sunny, with a high near 87.

Wednesday Night

Mostly clear, with a low around 67.

Thursday

Sunny, with a high near 87.

Thursday Night

Mostly clear, with a low around 67.

Friday

Mostly sunny, with a high near 88.

Friday Night

A 20 percent chance of showers. Partly cloudy, with a low around 69.