Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

69°F

21°C

Humidity	93%
Wind Speed	Calm
Barometer	30.01 in (1014.9 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	19 Aug 6:53 am EDT

More Information:

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

Extended Forecast for

5 Miles SE Karns TN

Today
High: 91 °F
Patchy Fog
then Sunny
Tonight
Low: 71 °F
Increasing
Clouds
Thursday
High: 89 °F
Showers
Likely then
Chance
T-storms
Thursday Night
Low: 70 °F
Chance
T-storms then
Chance
Showers
Friday
High: 89 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 69 °F
Chance
T-storms then
Slight Chance
Showers
Saturday
High: 89 °F
Mostly Sunny
Saturday Night
Low: 67 °F
Partly Cloudy
Sunday
High: 89 °F
Mostly Sunny

Detailed Forecast

Today

Patchy fog between 7am and 8am. Otherwise, sunny and hot, with a high near 91. Heat index values as high as 95. Calm wind.

Tonight

Increasing clouds, with a low around 71. Calm wind.

Thursday

Showers and thunderstorms likely before 4pm, then a chance of thunderstorms, mainly after 5pm. Cloudy, then gradual clearing during the afternoon, with a high near 89. Heat index values as high as 96. Calm wind becoming south around 5 mph in the afternoon. 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. Mostly cloudy, with a low around 70. North wind around 5 mph becoming northeast after midnight. Chance of precipitation is 50%.

Friday

A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 69. North wind around 5 mph becoming calm. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.

Saturday Night

Partly cloudy, with a low around 67.

Sunday

Mostly sunny, with a high near 89.

Sunday Night

Partly cloudy, with a low around 65.

Monday

Mostly sunny, with a high near 88.

Monday Night

Partly cloudy, with a low around 66.