Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

76°F

24°C

Humidity	88%
Wind Speed	S 3 mph
Barometer	30.15 in (1019.7 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	76°F (24°C)
Last update	14 Jul 11:53 pm EDT

More Information:

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

Extended Forecast for

Seymour TNSimilar City Names

Overnight
Low: 69 °F
Mostly Cloudy
Wednesday
High: 88 °F
Mostly Sunny
Wednesday Night
Low: 71 °F
Mostly Clear
Thursday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Thursday Night
Low: 73 °F
Chance
T-storms
Friday
High: 88 °F
Slight Chance
T-storms then
T-storms
Likely
Friday Night
Low: 72 °F
T-storms
Likely
Saturday
High: 87 °F
Chance
Showers then
T-storms
Saturday Night
Low: 72 °F
T-storms then
Chance
T-storms

Detailed Forecast

Overnight

Mostly cloudy, with a low around 69. Calm wind.

Wednesday

Mostly sunny, with a high near 88. Calm wind.

Wednesday Night

Mostly clear, with a low around 71. Calm wind.

Thursday

A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 98. Calm wind.

Thursday Night

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.

Friday

A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 88. Calm wind. Chance of precipitation is 70%.

Friday Night

Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

Saturday

A slight chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. Chance of precipitation is 80%.

Saturday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 72. Chance of precipitation is 80%.

Sunday

Showers likely, with thunderstorms also possible after 8am. Partly sunny, with a high near 87. Chance of precipitation is 60%.

Sunday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Monday

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

Monday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Tuesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.