Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. 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

81°F

27°C

Humidity	67%
Wind Speed	SW 12 mph
Barometer	30.09 in (1017.7 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	14 Jun 12:53 pm EDT

More Information:

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

Extended Forecast for

Alcoa TN

This Afternoon
High: 86 °F
T-storms
Likely
Tonight
Low: 69 °F
T-storms
Likely
Sunday
High: 84 °F
Showers
Likely then
T-storms
Sunday Night
Low: 69 °F
T-storms then
Chance
Showers
Monday
High: 86 °F
Chance
Showers then
T-storms
Likely
Monday Night
Low: 70 °F
T-storms
Likely then
Chance
Showers
Tuesday
High: 86 °F
Chance
T-storms then
T-storms
Tuesday Night
Low: 70 °F
T-storms then
Chance
T-storms
Wednesday
High: 88 °F
Chance
Showers then
Showers
Likely

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 86. Southwest wind around 10 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 before 8pm, then showers likely and possibly a thunderstorm between 8pm and midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 69. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and possibly a thunderstorm. High near 84. Southwest wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 69. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

Monday

A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 86. West wind around 5 mph. Chance of precipitation is 70%.

Monday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

Tuesday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 86. Southwest wind 5 to 10 mph. Chance of precipitation is 90%.

Tuesday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Low around 70. Chance of precipitation is 80%.

Wednesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 70%.

Wednesday Night

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

Juneteenth

Showers and thunderstorms. High near 86. Chance of precipitation is 80%.

Thursday Night

Showers and thunderstorms. Low around 70. Chance of precipitation is 80%.

Friday

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