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

76°F

24°C

Humidity	88%
Wind Speed	E 3 mph
Barometer	30.15 in (1019.7 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	76°F (24°C)
Last update	18 Jul 7:53 am EDT

More Information:

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

Extended Forecast for

3 Miles WNW Maryville TN

Today
High: 91 °F
Mostly Sunny
then T-storms
Likely
Tonight
Low: 74 °F
T-storms
Likely then
Chance
T-storms
Saturday
High: 89 °F
Chance
T-storms then
T-storms
Likely
Saturday Night
Low: 74 °F
T-storms
Likely then
Chance
Showers
Sunday
High: 89 °F
Slight Chance
T-storms then
T-storms
Likely
Sunday Night
Low: 74 °F
T-storms
Likely then
Chance
Showers
Monday
High: 91 °F
Slight Chance
T-storms then
T-storms
Likely
Monday Night
Low: 73 °F
T-storms
Likely then
Slight Chance
T-storms
Tuesday
High: 92 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Today

Showers and thunderstorms likely, mainly after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 101. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. Heat index values as high as 98. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 60%.

Sunday

Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. West wind around 5 mph. Chance of precipitation is 60%.

Sunday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. 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 northwest around 5 mph. Chance of precipitation is 60%.

Monday Night

Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

Tuesday

A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92.

Tuesday Night

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

Wednesday

A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.

Wednesday Night

A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.

Thursday

A 40 percent chance of showers and thunderstorms. Sunny and hot, with a high near 94.