Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

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

Mostly Cloudy

69°F

21°C

Humidity	93%
Wind Speed	Calm
Barometer	30.01 in (1014.9 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	19 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

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

Tonight

Partly cloudy until early morning, then mostly cloudy with a slight chance of showers and thunderstorms late. Lows in the lower 70s. Light winds. Chance of rain 20 percent.

Thursday

Mostly cloudy in the morning, then becoming mostly sunny. Showers likely with a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms early in the afternoon. A chance of showers and thunderstorms late. Highs in the upper 80s. Southwest winds 10 mph or less. Chance of rain 70 percent.

Thursday Night

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

Friday

Mostly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Light winds. Chance of rain 50 percent.

Friday Night

Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 20 percent.

Saturday

Mostly sunny. Highs in the upper 80s.

Saturday Night

Partly cloudy. Lows in the upper 60s.

Sunday

Mostly sunny. Highs in the upper 80s.

Sunday Night

Partly cloudy. Lows in the mid 60s.

Monday

Mostly sunny. Highs in the upper 80s.

Monday Night

Partly cloudy. Lows in the mid 60s.

Tuesday

Mostly sunny. A slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.