Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. 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

75°F

24°C

Humidity	82%
Wind Speed	N 5 mph
Barometer	30.07 in (1017.4 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	2 Aug 7:53 pm EDT

More Information:

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

Extended Forecast for

5 Miles SSE Karns TN

Tonight
Low: 68 °F
Chance
Showers
Sunday
High: 77 °F
Chance
Showers then
T-storms
Likely
Sunday Night
Low: 64 °F
T-storms
Likely then
Chance
Showers
Monday
High: 81 °F
Slight Chance
Showers then
Chance
T-storms
Monday Night
Low: 67 °F
Chance
T-storms then
Chance
Showers
Tuesday
High: 81 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 68 °F
Chance
T-storms then
Chance
Showers
Wednesday
High: 83 °F
Showers
Likely
Wednesday Night
Low: 68 °F
Showers
Likely then
Chance
Showers

Detailed Forecast

Tonight

A 40 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm.

Sunday

A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 77. Northeast wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Northeast wind around 5 mph becoming calm. Chance of precipitation is 30%.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%.

Tuesday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 81. Calm wind. Chance of precipitation is 50%.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 50%.

Wednesday

A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

Wednesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 83. Chance of precipitation is 40%.

Thursday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

Friday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

Friday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.