Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. 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

73°F

23°C

Humidity	90%
Wind Speed	Calm
Barometer	30.12 in (1018.7 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	11 Aug 5:53 am EDT

More Information:

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

Extended Forecast for

4 Miles SSW Mascot TN

Today
High: 91 °F
Slight Chance
Showers then
Slight Chance
T-storms
Tonight
Low: 72 °F
Chance
T-storms
Wednesday
High: 91 °F
Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 73 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 92 °F
Partly Sunny
then Slight
Chance
T-storms
Thursday Night
Low: 75 °F
Slight Chance
T-storms
Friday
High: 92 °F
Partly Sunny
then Chance
T-storms
Friday Night
Low: 73 °F
Chance
T-storms
Saturday
High: 92 °F
Partly Sunny
then Slight
Chance
T-storms

Detailed Forecast

Today

A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 101. West wind around 5 mph. Chance of precipitation is 20%.

Tonight

A 50 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 72. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny and hot, with a high near 91. Heat index values as high as 102. Southwest wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph. Chance of precipitation is 30%.

Thursday

A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 92. West wind around 5 mph.

Thursday Night

A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm.

Friday

A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 92. Southwest wind around 5 mph.

Friday Night

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.

Saturday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92.

Saturday Night

A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.