Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

76°F

24°C

Humidity	77%
Wind Speed	SW 3 mph
Barometer	29.96 in (1013.1 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	20 Aug 2:53 am EDT

More Information:

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

Extended Forecast for

2 Miles SSW Seymour TN

Overnight
Low: 70 °F
Mostly Cloudy
Thursday
High: 90 °F
Slight Chance
T-storms then
Partly Sunny
Thursday Night
Low: 70 °F
Chance
T-storms
Friday
High: 87 °F
Slight Chance
T-storms
Friday Night
Low: 68 °F
Chance
T-storms then
Slight Chance
Showers
Saturday
High: 88 °F
Mostly Sunny
Saturday Night
Low: 66 °F
Partly Cloudy
Sunday
High: 86 °F
Sunny
Sunday Night
Low: 63 °F
Mostly Clear

Detailed Forecast

Overnight

Mostly cloudy, with a low around 70. Calm wind.

Thursday

A slight chance of showers and thunderstorms between 8am and 10am. Partly sunny and hot, with a high near 90. Heat index values as high as 96. South wind around 5 mph becoming west in the morning. Chance of precipitation is 20%.

Thursday Night

A 50 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A slight chance of thunderstorms before 8am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.

Friday Night

A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 68. Northwest wind around 5 mph becoming calm. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.

Saturday Night

Partly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening.

Sunday

Sunny, with a high near 86.

Sunday Night

Mostly clear, with a low around 63.

Monday

Sunny, with a high near 86.

Monday Night

Partly cloudy, with a low around 64.