Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. 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

80°F

27°C

Humidity	69%
Wind Speed	W 7 mph
Barometer	30.03 in (1015.7 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	25 Jul 5:53 pm EDT

More Information:

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

Extended Forecast for

Alcoa TN

Tonight
Low: 71 °F
Chance
T-storms then
Showers
Sunday
High: 88 °F
Showers
Likely then
Chance
T-storms
Sunday Night
Low: 72 °F
Slight Chance
T-storms then
Slight Chance
Showers
Monday
High: 91 °F
Chance
Showers
Monday Night
Low: 74 °F
Partly Cloudy
Tuesday
High: 92 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 73 °F
Showers
Likely
Wednesday
High: 88 °F
Slight Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 68 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 71. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming northwest 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.

Sunday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.

Monday

A chance of showers between 7am and 2pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 100. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%.

Monday Night

Partly cloudy, with a low around 74. South wind around 5 mph.

Tuesday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 60%.

Wednesday

A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 68.

Thursday

Sunny, with a high near 87.

Thursday Night

Mostly clear, with a low around 67.

Friday

Mostly sunny, with a high near 88.

Friday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 69.