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.

Partly Cloudy

89°F

32°C

Humidity	48%
Wind Speed	SW 7 mph
Barometer	29.98 in (1014.0 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	92°F (33°C)
Last update	18 Aug 5:53 pm EDT

More Information:

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

Extended Forecast for

Knoxville, McGhee Tyson Airport TN

Tonight
Low: 68 °F
Mostly Clear
then Patchy
Fog
Wednesday
High: 91 °F
Patchy Fog
then Sunny
Wednesday Night
Low: 70 °F
Mostly Clear
Thursday
High: 90 °F
Slight Chance
T-storms
Thursday Night
Low: 71 °F
Chance
Showers
Friday
High: 89 °F
Chance
Showers then
Showers
Likely
Friday Night
Low: 68 °F
Showers
Likely then
Chance
T-storms
Saturday
High: 89 °F
Mostly Sunny
Saturday Night
Low: 67 °F
Mostly Clear

Detailed Forecast

Tonight

Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 68. Northwest wind around 5 mph becoming calm in the evening.

Wednesday

Patchy fog before 8am. Otherwise, sunny and hot, with a high near 91. Calm wind becoming north around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.

Thursday

A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 11am, then a slight chance of showers and thunderstorms after 11am. Cloudy, then gradually becoming mostly sunny and hot, with a high near 90. Southwest wind around 5 mph becoming northwest in the morning. Chance of precipitation is 20%.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming east after midnight. 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. Light and variable wind becoming west 5 to 10 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 68. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

Saturday

Mostly sunny, with a high near 89.

Saturday Night

Mostly clear, with a low around 67.

Sunday

Sunny, with a high near 88.

Sunday Night

Partly cloudy, with a low around 64.

Monday

Mostly sunny, with a high near 88.

Monday Night

Partly cloudy, with a low around 66.