Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. 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

86°F

30°C

Humidity	61%
Wind Speed	N 10 mph
Barometer	29.98 in (1013.8 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	26 Jul 1:53 pm EDT

More Information:

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

Extended Forecast for

Maryville TN

This Afternoon
High: 88 °F
Mostly Sunny
Tonight
Low: 72 °F
Partly Cloudy
then Chance
Showers
Monday
High: 90 °F
Slight Chance
Showers then
Mostly Sunny
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 91 °F
Chance
Showers then
T-storms
Likely
Tuesday Night
Low: 72 °F
T-storms
Likely then
Showers
Likely
Wednesday
High: 87 °F
Mostly Sunny
Wednesday Night
Low: 66 °F
Mostly Clear
Thursday
High: 86 °F
Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 88. Heat index values as high as 95. Calm wind becoming northwest around 5 mph.

Tonight

A 30 percent chance of showers, mainly between 4am and 5am. Mostly cloudy, with a low around 72. Calm wind.

Monday

A 10 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming northwest around 5 mph.

Monday Night

Mostly clear, with a low around 74. West wind around 5 mph becoming south in the evening.

Tuesday

A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Partly sunny and hot, with a high near 91. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

Tuesday Night

Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 2am. Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 70%.

Wednesday

Mostly sunny, with a high near 87. Light north wind increasing to 5 to 10 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 66.

Thursday

Sunny, with a high near 86.

Thursday Night

Mostly clear, with a low around 66.

Friday

Mostly sunny, with a high near 87.

Friday Night

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