National Weather Service Forecast for: Kingsport TN
Issued by: National Weather Service Morristown, TN
Updated: 2:26 pm EDT Jul 28, 2026
 
This
Afternoon
This Afternoon: Showers and possibly a thunderstorm. High near 89. Heat index values as high as 98. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms

 Tonight

Tonight: Showers and thunderstorms, mainly before 8pm. Low around 67. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms then
Partly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 84. Light north wind becoming northwest 5 to 10 mph in the afternoon.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 59. North wind around 5 mph becoming calm in the evening.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 83. Calm wind becoming north around 5 mph in the afternoon.
Sunny

 Thursday
Night
Thursday Night: Clear, with a low around 57. Calm wind.
Clear

 Friday

Friday: Sunny, with a high near 86. Calm wind.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 66.
Partly Cloudy

 Saturday

Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 85.
Mostly Cloudy
then Slight
Chance
T-storms
Hi 89 °F Lo 67 °F Hi 84 °F Lo 59 °F Hi 83 °F Lo 57 °F Hi 86 °F Lo 66 °F Hi 85 °F

Hazardous Weather Outlook
Severe Thunderstorm Watch
Severe Thunderstorm Warning
 

This Afternoon
 
 Showers and possibly a thunderstorm. High near 89. Heat index values as high as 98. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Showers and thunderstorms, mainly before 8pm. Low around 67. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 Mostly sunny, with a high near 84. Light north wind becoming northwest 5 to 10 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 59. North wind around 5 mph becoming calm in the evening.
Thursday
 
 Sunny, with a high near 83. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 57. Calm wind.
Friday
 
 Sunny, with a high near 86. Calm wind.
Friday Night
 
 Partly cloudy, with a low around 66.
Saturday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 85.
Saturday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Sunday
 
 Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
Sunday Night
 
 Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Monday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
 
 A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 86.

 

Forecast from NOAA-NWS for Kingsport TN.