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° N Lon: 83.99° W Elev: 981 ft.

Thunderstorm Rain

88°F

31°C

Humidity	66%
Wind Speed	SW 20 G 28 mph
Barometer	29.69 in (1003.9 mb)
Dewpoint	75°F (24°C)
Visibility	9.00 mi
Heat Index	98°F (37°C)
Last update	28 Jul 5:53 pm EDT

More Information:

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

Detailed forecast for

Knox County

Rest Of Today

Mostly sunny. A chance of showers and thunderstorms this afternoon, then thunderstorms likely with a chance of showers late. Highs in the lower 90s. West winds 5 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Tonight

Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows around 70. Light winds. Chance of rain 40 percent.

Wednesday

Mostly sunny. Highs in the mid 80s. North winds 10 mph or less.

Wednesday Night

Mostly clear. Lows in the lower 60s. Light winds.

Thursday

Sunny. Highs in the mid 80s. Light winds.

Thursday Night

Mostly clear. Lows in the lower 60s.

Friday

Mostly sunny. Highs in the mid 80s.

Friday Night

Mostly cloudy. Lows in the upper 60s.

Saturday

Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.

Saturday Night

Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 50 percent.

Sunday

Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 70 percent.

Sunday Night

Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the lower 70s. Chance of rain 50 percent.

Monday

Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.