National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, Aug 28, 2026 at 2:30:17 am EDT

 

A heat wave is expected into late next week with highs rising into the low to mid 90s and heat index values reaching or exceeding 100°. Even hotter conditions are expected to our south and west
Scattered showers and storms are expected across the East Tennessee mountains and southwest North Carolina this afternoon. The threat of severe weather is low, but an isolated strong to severe wind gust cannot be ruled out. Hot and muggy conditions return to the area for early next week.
Scattered showers and storms are expected across the East Tennessee mountains and southwest North Carolina this afternoon. The threat of severe weather is low, but an isolated strong to severe wind gust cannot be ruled out. Hot and muggy conditions return to the area for early next week.
Scattered showers and storms are expected across the East Tennessee mountains and southwest North Carolina this afternoon. The threat of severe weather is low, but an isolated strong to severe wind gust cannot be ruled out. Hot and muggy conditions return to the area for early next week.
Hot and muggy conditions will return next week. High temperatures in the upper 80s to middle 90s are anticipated which is 5 to 10 degrees above normal.

 Current Weather Observations...
Location Time
(EDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA02:15Mostly Cloudy10686693CALM-30.06
Andrews-Murphy NC01:55Mist5656495CALM-30.06
Chattanooga TN01:53Partly Cloudy10757084CALM-29.99
Crossville TN01:53Clear10666493CALM-30.06
Dalton GA02:15Clear107070100CALM-30.00
Knoxville TN (McGhee-Tyson)01:53Overcast10767184NW 5-29.98
Middlesboro KY02:15Clear10666697CALM-30.04
Monroe Cnty TN01:55Partly Cloudy106969100CALM-30.00
Morristown TN01:55Mostly Cloudy106969100CALM-
Oak Ridge TN01:53Clear77171100CALM-30.01
Tazewell Cnty VA01:35Mostly Cloudy10656598CALM-30.10
Tri-Cities TN01:53Partly Cloudy10696689CALM-30.03
Wise VA02:15Mist2 1/26464100CALM-30.10
Greeneville, TN01:55Clear10686693CALM-30.02


Local Weather History For August 28th...
In 2006, lightning razed a barn in Greenback along with the contents inside. $60,000 damage.

 

 

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