Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

84°F

29°C

Humidity	65%
Wind Speed	NW 5 mph
Barometer	30.01 in (1014.9 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	6 Jul 12:53 pm EDT

More Information:

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

Extended Forecast for

5 Miles SSW Maryville TN

This Afternoon
High: 89 °F
T-storms
Likely
Tonight
Low: 72 °F
T-storms
Likely then
Slight Chance
Showers
Tuesday
High: 88 °F
Chance
T-storms
Tuesday Night
Low: 72 °F
Chance
T-storms then
Slight Chance
Showers
Wednesday
High: 90 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 73 °F
Slight Chance
T-storms
Thursday
High: 90 °F
Chance
T-storms
Thursday Night
Low: 73 °F
Chance
T-storms
Friday
High: 89 °F
Showers
Likely then
T-storms
Likely

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. Heat index values as high as 96. West 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.

Tonight

Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. West wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 88. Heat index values as high as 95. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%.

Tuesday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%.

Wednesday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Calm wind.

Thursday

A 40 percent chance of showers and thunderstorms after 8am. Mostly sunny and hot, with a high near 90. Light south wind becoming southwest 5 to 10 mph in the morning.

Thursday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Friday

Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 70%.

Friday Night

Showers and thunderstorms likely, mainly before 8pm, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

Saturday

Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 80%.

Saturday Night

Showers and possibly a thunderstorm. Low around 71. Chance of precipitation is 80%.

Sunday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 60%.