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 3:30:22 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 VA14:55Clear10826251W 8-30.09
Andrews-Murphy NC14:55Clear10866651WSW 5-30.07
Chattanooga TN14:53Partly Cloudy10916745VRB 594 [HI]30.02
Crossville TN14:53Clear10836554VRB 3-30.10
Dalton GA15:15Clear10906746VRB 793 [HI]30.02
Knoxville TN (McGhee-Tyson)14:53Mostly Cloudy10876649W 6-30.03
Middlesboro KY14:55Clear10866649SSW 5-30.06
Monroe Cnty TN14:55Clear10866958NW 5G12-30.04
Morristown TN15:15Mostly Clear9846962CALM-30.05
Oak Ridge TN14:53Mostly Clear10906848CALM94 [HI]30.05
Tazewell Cnty VA05:55Fog1/46262100CALM-30.10
Tri-Cities TN14:53Partly Cloudy10866651CALM-30.06
Wise VA15:15Partly Cloudy10786257CALM-30.13
Greeneville, TN14:5510846654WNW 5-30.06


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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