Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82° N Lon: 83.99° W Elev: 981 ft.

A Few Clouds

76°F

24°C

Humidity	85%
Wind Speed	Calm
Barometer	30.18 in (1020.7 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	31 Aug 8:53 am EDT

More Information:

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

Detailed forecast for

Knox County

Today

Sunny. Highs in the lower 90s. Light winds.

Tonight

Mostly clear. Lows in the lower 70s. Light winds.

Tuesday

Sunny. Highs in the mid 90s. Light winds.

Tuesday Night

Mostly clear. Lows in the lower 70s. Light winds.

Wednesday

Sunny. Highs in the mid 90s. Light winds. Heat index values around 105.

Wednesday Night

Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s.

Thursday

Sunny. Highs in the mid 90s. Heat index values around 105.

Thursday Night

Mostly clear. Lows in the lower 70s.

Friday

Sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40 percent.

Friday Night

Partly cloudy. Lows in the lower 70s.

Saturday

Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent.

Saturday Night

Partly cloudy. Lows in the upper 60s.

Sunday

Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent.