Heat Expands for Center of the Nation; Severe Thunderstorms for Plains and Upper Midwest

Dangerous heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest. Critical fire weather for portions of the Intermountain West. Risk for severe thunderstorms and flash flooding across the Upper Midwest/Great Lakes, Ohio Valley, and portions of the mid-Atlantic. Active monsoonal moisture fuels thunderstorms over the Southwest. Hurricane Fausto in the Pacific, should weaken 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

77°F

25°C

Humidity	88%
Wind Speed	SW 5 mph
Barometer	30.00 in (1014.7 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	26 Jul 8:53 am EDT

More Information:

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

Extended Forecast for

Alcoa TN

Today
High: 89 °F
Slight Chance
T-storms then
Mostly Sunny
Tonight
Low: 72 °F
Partly Cloudy
Monday
High: 91 °F
Partly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 93 °F
Mostly Sunny
then Showers
Likely
Tuesday Night
Low: 73 °F
Showers
Likely
Wednesday
High: 88 °F
Slight Chance
Showers
Wednesday Night
Low: 67 °F
Mostly Clear
Thursday
High: 87 °F
Sunny

Detailed Forecast

Today

A slight chance of showers and thunderstorms between 10am and noon. Partly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming northwest around 5 mph. Chance of precipitation is 20%.

Tonight

Partly cloudy, with a low around 72. Calm wind.

Monday

A slight chance of showers and thunderstorms between 2pm and 3pm. Partly sunny and hot, with a high near 91. Heat index values as high as 100. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.

Monday Night

Mostly cloudy during the early evening, then becoming mostly clear, with a low around 75. South wind around 5 mph.

Tuesday

Showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 93. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

Tuesday Night

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

Wednesday

A slight chance of showers between 8am and 2pm. Mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 67.

Thursday

Sunny, with a high near 87.

Thursday Night

Mostly clear, with a low around 67.

Friday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

Friday Night

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

Saturday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.