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.

Thunderstorm Light Rain

79°F

26°C

Humidity	79%
Wind Speed	Calm
Barometer	29.99 in (1014.3 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	6 Jul 8:53 pm EDT

More Information:

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

Extended Forecast for

5 Miles SSW Maryville TN

Tonight
Low: 71 °F
Chance
T-storms then
Slight Chance
T-storms and
Patchy Fog
Tuesday
High: 87 °F
Chance
T-storms and
Patchy Fog
Tuesday Night
Low: 71 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 88 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 71 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 88 °F
Chance
T-storms
Thursday Night
Low: 72 °F
Chance
T-storms
Friday
High: 88 °F
Showers then
T-storms
Friday Night
Low: 72 °F
T-storms
Likely then
Showers
Likely

Detailed Forecast

Tonight

A 50 percent chance of showers and thunderstorms, mainly before 11pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 71. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%.

Tuesday Night

A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 71. West wind around 5 mph becoming calm.

Wednesday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 95. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 40%.

Friday

Showers, with thunderstorms also possible after 8am. High near 88. Chance of precipitation is 80%.

Friday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm after 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%.

Saturday

Showers and possibly a thunderstorm. High near 85. Chance of precipitation is 80%.

Saturday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Sunday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 70%.

Sunday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

Monday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.