Catastrophic Flooding Impacts in South-Central Texas

Widespread life-threatening flash and urban flooding will continue to pose a significant threat to life and property in south-central Texas. Catastrophic fiver flooding, with rapid rises on small streams, arroyos, and typically dry washes, is expected. Monsoonal showers persist across the Great Basin and Southwest with greatest flash flooding in southern Arizona. 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

77°F

25°C

Humidity	88%
Wind Speed	SW 5 mph
Barometer	30.10 in (1017.8 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	17 Jul 4:53 am EDT

More Information:

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

Extended Forecast for

2 Miles SE Knoxville TN

Today
High: 91 °F
Patchy Fog
then T-storms
Likely
Tonight
Low: 74 °F
Chance
T-storms then
Mostly Cloudy
Saturday
High: 88 °F
Slight Chance
T-storms then
T-storms
Likely
Saturday Night
Low: 73 °F
T-storms
Likely then
Showers
Likely
Sunday
High: 88 °F
Chance
Showers then
Showers
Sunday Night
Low: 72 °F
Showers then
Partly Cloudy
Monday
High: 90 °F
Hot
Monday Night
Low: 73 °F
Mostly Clear
Tuesday
High: 90 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

Today

Showers and thunderstorms likely, mainly after 5pm. Patchy fog between 7am and 8am. Otherwise, mostly sunny and hot, with a high near 91. Heat index values as high as 102. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 74. West wind around 5 mph becoming calm. Chance of precipitation is 30%.

Saturday

Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

Sunday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 88. Calm wind. Chance of precipitation is 80%.

Sunday Night

Showers and possibly a thunderstorm before 8pm. Low around 72. Calm wind. Chance of precipitation is 80%.

Monday

Mostly sunny and hot, with a high near 90. Calm wind.

Monday Night

Mostly clear, with a low around 73.

Tuesday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90.

Tuesday Night

A 40 percent chance of showers and thunderstorms, mainly after 8pm. Partly cloudy, with a low around 74.