National Weather Service United States Department of Commerce

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 >

Click a location below for detailed forecast.

Last Map Update: Wed, Aug 19, 2026 at 6:34:41 pm EDT

 

Rain and thunderstorm chances return on Thursday as a cold front sweeps across the region. A conditional severe weather threat exists Thursday afternoon dependent on if storms develop. If storms occur, damaging winds will be the primary severe concern. Drier, more comfortable late August weather will settle in for the weekend.
Rain chances return on Thursday, with several waves of showers and thunderstorms possible through Friday. Temperatures will be close to normal through the weekend.
Rain chances return on Thursday, with several waves of showers and thunderstorms possible through Friday. Temperatures will be close to normal through the weekend.
Rain chances return on Thursday, with several waves of showers and thunderstorms possible through Friday. Temperatures will be close to normal through the weekend.

 Current Weather Observations...
Location Time
(EDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA18:15Mostly Cloudy10806457W 5-30.07
Andrews-Murphy NC17:55Clear10856550N 5-30.05
Chattanooga TN17:53Partly Cloudy10926541NNW 894 [HI]29.98
Crossville TN17:53Clear10826454SW 3-30.06
Dalton GA18:15Clear10906849VRB 394 [HI]29.98
Knoxville TN (McGhee-Tyson)17:53Mostly Cloudy10906442N 591 [HI]29.99
Middlesboro KY17:55Clear10866854W 3-30.03
Monroe Cnty TN17:55Clear10876955N 691 [HI]30.00
Morristown TN18:15Mostly Cloudy9846858NW 7-30.02
Oak Ridge TN17:53Clear10896748CALM92 [HI]30.01
Tazewell Cnty VA17:15Clear10786258W 5-30.12
Tri-Cities TN17:53Mostly Cloudy10876547W 6-30.04
Wise VA18:15Mostly Cloudy10776465N 5-30.12
Greeneville, TN17:5510846451CALM-30.04


Local Weather History For August 19th...
In 2011, storms hit on 2 straight days causing $30,000 wind damage and quarter-size hail.

 

 

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