Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

89°F

32°C

Humidity	55%
Wind Speed	SW 17 G 24 mph
Barometer	30.10 in (1017.8 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	19 Jul 1:53 pm EDT

More Information:

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

Extended Forecast for

4 Miles SSW Maryville TN

This Afternoon
High: 87 °F
T-storms
Tonight
Low: 73 °F
Chance
T-storms
Sunday
High: 90 °F
Chance
T-storms
Sunday Night
Low: 73 °F
T-storms
Likely then
Chance
Showers
Monday
High: 91 °F
Slight Chance
T-storms then
T-storms
Likely
Monday Night
Low: 72 °F
T-storms
Likely then
Slight Chance
Showers
Tuesday
High: 92 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 72 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 92 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Showers and thunderstorms. High near 87. Southwest wind around 10 mph. Chance of precipitation is 80%. 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 3am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.

Sunday

A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny and hot, with a high near 90. Heat index values as high as 98. Southwest wind around 5 mph.

Sunday Night

Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

Monday

Showers and thunderstorms likely, mainly after 2pm. Partly sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.

Monday Night

Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

Tuesday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming north around 5 mph in the afternoon.

Tuesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72.

Wednesday

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

Wednesday Night

A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.

Thursday

A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.

Thursday Night

A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.

Friday

A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 94.