National Weather Service Forecast for: Kingsport TN
Issued by: National Weather Service Morristown, TN
Updated: 7:01 pm EDT Sep 12, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Patchy Fog
 Sunday

Sunday: Areas of fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Calm wind becoming west around 5 mph.
Areas Fog
then Mostly
Sunny
 Sunday
Night
Sunday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Partly Cloudy
then Patchy
Fog
 Monday

Monday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Patchy Fog
then Mostly
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 62. Northeast wind around 5 mph.
Mostly Clear

 Tuesday

Tuesday: Sunny and hot, with a high near 90. East wind around 5 mph becoming calm.
Hot

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 62. Calm wind becoming southeast around 5 mph.
Mostly Clear

 Wednesday

Wednesday: Sunny and hot, with a high near 91.
Hot

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 63.
Mostly Clear
Lo 68 °F Hi 88 °F Lo 66 °F Hi 87 °F Lo 62 °F Hi 90 °F Lo 62 °F Hi 91 °F Lo 63 °F

 

Tonight
 
 A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 Areas of fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Calm wind becoming west around 5 mph.
Sunday Night
 
 Patchy fog after 5am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Monday
 
 Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 62. Northeast wind around 5 mph.
Tuesday
 
 Sunny and hot, with a high near 90. East wind around 5 mph becoming calm.
Tuesday Night
 
 Mostly clear, with a low around 62. Calm wind becoming southeast around 5 mph.
Wednesday
 
 Sunny and hot, with a high near 91.
Wednesday Night
 
 Mostly clear, with a low around 63.
Thursday
 
 Sunny and hot, with a high near 91.
Thursday Night
 
 Mostly clear, with a low around 64.
Friday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Friday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Saturday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

 

Forecast from NOAA-NWS for Kingsport TN.