National Weather Service United States Department of Commerce

Widespread Damaging Winds Likely in the Northern Plains; Heat Continues in the Central and Southeast U.S.

Severe thunderstorms, heavy rainfall, and flooding are possible from the northern Rockies into the Upper Midwest. A derecho is likely across portions of the northern Plains, with several gusts expected to exceed 75 mph. Extreme heat is expected to intensify across much of the Southeast and Tennessee Valley, continuing through much of this week. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, Jul 29, 2025 at 12:40:44 am EDT

 

A Heat Advisory is in effect through 8 PM EDT Tuesday for heat indices as high as 107°F. Please stay hydrated and limit time spent outdoors. Remember to look before you lock!
Heat indices as high as 107°F Tuesday. Showers and storms will favor higher terrain during the PM hours Tuesday but increasing coverage of thunderstorms area-wide for Wednesday and especially Thursday.
Hot and humid conditions continue through mid-week. Heat Advisory in effect through Tuesday across the central and southern TN valley. Isolated to scattered showers and thunderstorms are expected each afternoon and evening, with the best chances across the higher elevations. Cooler temperatures and increasing coverage of showers and thunderstorms are expected for the latter half of the week.
Hot and humid conditions continue through mid-week. Heat Advisory in effect through Tuesday across the central and southern TN valley. Isolated to scattered showers and thunderstorms are expected each afternoon and evening, with the best chances across the higher elevations. Cooler temperatures and increasing coverage of showers and thunderstorms are expected for the latter half of the week.
Developing Heat Wave through early next week. Afternoon heat indices will climb to 105+ degrees by early next week.

 Current Weather Observations...
Location Time
(EDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA05:35Clear10696894S 2-30.21
Andrews-Murphy NC00:03Clear10727094CALM-30.19
Chattanooga TN23:53Cumulonimbus Clouds, Lightning Observed10837679NW 591 [HI]30.11
Crossville TN23:53Clear10757496CALM-30.19
Dalton GA00:15Lightning Observed10817685NNW 5-30.09
Knoxville TN (McGhee-Tyson)00:16Heavy Rain \ Mist \ Cumulonimbus Clouds, Lightning Observed1747293N 9G22-30.15
Middlesboro KY00:15Light Rain10737398CALM-30.17
Monroe Cnty TN23:55Mist47373100VRB 3-30.14
Morristown TN10:30OvercastVRB 5-30.10
Oak Ridge TN23:53Partly Cloudy10807687E 3-30.14
Tazewell Cnty VA00:15Mist1686899CALM-30.23
Tri-Cities TN23:53Lightning Observed7717096CALM-30.18
Wise VA00:15Clear106969100SW 5-30.23
Greeneville, TN23:55Clear10737194VRB 3-30.17


Local Weather History For July 28th...
Thunderstorm hit the area for 2 consecutive days in 2005 resulting in $1 million damage.

 

 

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