Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Click a location below for detailed forecast.

Last Map Update: Mon, May 18, 2026 at 10:32:37 pm EDT

Watches, Warnings & Advisories

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National Weather Service Atlanta/Peachtree City, GA

National Weather Service Greenville-Spartanburg, SC

There are no watches, warnings, or advisories at this time.

3 Day Outlook

Tonight

Tomorrow

Smoky Mtn Observations

Very Warm with higher rain chances for Wednesday and Thursday.

Mostly dry and continued unseasonably hot conditions for Tuesday. Unsettled weather conditions will begin Wednesday and continue into the weekend. Occasional showers and afternoon thunderstorms are anticipiated each day.

Each observation point is apart of our COOP program (Cooperative Observer Program). Each site has a 24 hour observation period that ends and begins at 8 am local time. Each site records temperature, precipitation, and snowfall data. More information about the COOP program can be found here www.nws.noaa.gov/om/coop/ Data began being collected at: Cades Cover on 01/01/1999 || Mount LeConte on 07/01/1987 || Newfound Gap on 01/01/1991 || Sugarlands Visitor Center on 12/01/1921

Current Weather Observations...

Location	Time (EDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Abingdon VA	22:15	Clear	10	75	53	46	SSW 6	-	30.26
Andrews-Murphy NC	21:55	Clear	10	69	60	72	CALM	-	30.27
Chattanooga TN	21:53	Mostly Cloudy	10	82	66	58	CALM	-	30.16
Crossville TN	21:53	Clear	10	73	64	73	CALM	-	30.21
Dalton GA	22:15	Clear	10	78	65	64	SSE 5	-	30.18
Knoxville TN (McGhee-Tyson)	21:53	Mostly Cloudy	10	80	60	50	S 7	-	30.17
Middlesboro KY	22:15	Clear	10				CALM	-	30.19
Monroe Cnty TN	21:55		10	78	62	57	CALM	-	30.18
Morristown TN	14:35		1	82	48	30	WSW 8	-
Oak Ridge TN	21:53	Clear	10	80	63	55	CALM	-	30.18
Tazewell Cnty VA	22:15	Clear	10	74	51	44	SW 5	-	30.29
Tri-Cities TN	21:53	Partly Cloudy	10	79	53	40	SW 5	-	30.22
Wise VA	22:15	Partly Cloudy	10	68	62	82	S 3	-	30.28
Greeneville, TN	21:55	Clear	10	77	53	44	S 3	-	30.22

Local Weather History For May 18th...

In 1995, squall line hit with $1.4 million damage. Tornadoes formed
in Knox, Morgan and Loudon Counties.


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