Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

85°F

29°C

Humidity	53%
Wind Speed	W 6 mph
Barometer	29.96 in (1013.3 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	18 Aug 7:53 pm EDT

More Information:

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

Extended Forecast for

4 Miles SE Maryville TN

Tonight
Low: 68 °F
Mostly Clear
Wednesday
High: 91 °F
Patchy Fog
then Sunny
Wednesday Night
Low: 71 °F
Partly Cloudy
Thursday
High: 91 °F
Slight Chance
Showers then
Slight Chance
T-storms
Thursday Night
Low: 71 °F
Chance
Showers
Friday
High: 89 °F
Showers
Likely
Friday Night
Low: 69 °F
Showers
Likely then
Chance
T-storms
Saturday
High: 89 °F
Mostly Sunny
Saturday Night
Low: 67 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 68. North wind around 5 mph becoming calm.

Wednesday

Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Heat index values as high as 95. Calm wind becoming north around 5 mph.

Wednesday Night

Partly cloudy, with a low around 71. Calm wind.

Thursday

A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny and hot, with a high near 91. Heat index values as high as 97. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.

Friday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

Saturday

Mostly sunny, with a high near 89.

Saturday Night

Partly cloudy, with a low around 67.

Sunday

Sunny, with a high near 88.

Sunday Night

Partly cloudy, with a low around 65.

Monday

Mostly sunny, with a high near 88.

Monday Night

Partly cloudy, with a low around 67.