Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

88°F

31°C

Humidity	43%
Wind Speed	SW 17 mph
Barometer	29.82 in (1008.4 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	17 Jun 4:53 pm EDT

More Information:

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

Extended Forecast for

Knoxville, McGhee Tyson Airport TN

Tonight
Low: 74 °F
Increasing
Clouds
Thursday
High: 86 °F
Breezy.
Slight Chance
T-storms then
T-storms
Likely
Thursday Night
Low: 69 °F
Chance
T-storms then
Showers
Juneteenth
High: 84 °F
Showers
Likely
Friday Night
Low: 63 °F
Partly Cloudy
Saturday
High: 86 °F
Sunny
Saturday Night
Low: 66 °F
Partly Cloudy
Sunday
High: 88 °F
Slight Chance
T-storms then
Chance
T-storms
Sunday Night
Low: 71 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Tonight

Increasing clouds, with a low around 74. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Thursday

A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then showers and thunderstorms likely after 2pm. Increasing clouds, with a high near 86. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 69. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Juneteenth

Showers likely, with thunderstorms also possible after 11am. Cloudy, then gradually becoming mostly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%.

Friday Night

Partly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.

Saturday

Sunny, with a high near 86. Calm wind.

Saturday Night

Partly cloudy, with a low around 66. Calm wind.

Sunday

A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.

Monday

Showers and possibly a thunderstorm. High near 84. Breezy. Chance of precipitation is 90%.

Monday Night

Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.

Tuesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

Tuesday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.

Wednesday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.