Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

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

Mostly Cloudy

74°F

23°C

Humidity	94%
Wind Speed	Calm
Barometer	30.00 in (1014.5 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	13 Aug 6:53 am EDT

More Information:

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

Detailed forecast for

Knox County

Today

Partly sunny. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Light winds. Chance of rain 40 percent.

Tonight

Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the mid 70s. Light winds. Chance of rain 20 percent.

Friday

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Light winds. Chance of rain 40 percent.

Friday Night

Partly cloudy. Humid with lows in the mid 70s. Light winds.

Saturday

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. Light winds. Chance of rain 40 percent. Heat index values around 106.

Saturday Night

Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20 percent.

Sunday

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

Sunday Night

Mostly clear. Lows in the mid 70s.

Monday

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

Monday Night

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

Tuesday

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.

Tuesday Night

Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Chance of rain 20 percent.

Wednesday

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