Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. 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

88°F

31°C

Humidity	50%
Wind Speed	Calm
Barometer	29.98 in (1014.0 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	4 Aug 2:53 pm EDT

More Information:

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

Extended Forecast for

2 Miles W Mascot TN

This Afternoon
High: 87 °F
Chance
T-storms
Tonight
Low: 70 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 85 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 70 °F
Chance
T-storms then
Partly Cloudy
Thursday
High: 85 °F
Mostly Sunny
then Showers
Likely
Thursday Night
Low: 70 °F
Showers
Likely then
Partly Cloudy
Friday
High: 85 °F
Partly Sunny
then Chance
T-storms
Friday Night
Low: 70 °F
Chance
T-storms
Saturday
High: 85 °F
Chance
T-storms then
T-storms
Likely

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 87. Calm wind.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 70. Calm wind.

Wednesday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind.

Wednesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Calm wind.

Thursday

Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.

Friday

A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

Friday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

Saturday

A chance of showers, then showers and thunderstorms likely after 8am. Partly sunny, with a high near 85. Chance of precipitation is 60%.

Saturday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Sunday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

Sunday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

Monday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.