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Kingsport, Tennessee 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Kingsport TN
National Weather Service Forecast for: Kingsport TN
Issued by: National Weather Service Morristown, TN
Updated: 7:27 pm EDT Jul 11, 2025
 
Tonight

Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 70. Calm wind.
Partly Cloudy
then Patchy
Fog

Saturday

Saturday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 2pm.  Patchy fog before 7am.  Otherwise, mostly sunny and hot, with a high near 92. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon.
Chance
T-storms and
Patchy Fog

Saturday
Night
Saturday Night: A chance of showers and thunderstorms.  Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 69. Calm wind.  Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers and
Patchy Fog
Sunday

Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Patchy fog before 7am.  Otherwise, mostly sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 50%.
Slight Chance
T-storms and
Patchy Fog
then Chance
T-storms
Sunday
Night
Sunday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
Monday

Monday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm.  Partly sunny and hot, with a high near 92. Calm wind becoming west around 5 mph.  Chance of precipitation is 40%.
Slight Chance
Showers then
Chance
T-storms
Monday
Night
Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly clear, with a low around 69. Calm wind.
Chance
T-storms

Tuesday

Tuesday: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 94.
Mostly Sunny
then Chance
T-storms

Tuesday
Night
Tuesday Night: A 30 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 69.
Chance
T-storms

Lo 70 °F Hi 92 °F Lo 69 °F Hi 92 °F Lo 70 °F Hi 92 °F Lo 69 °F Hi 94 °F Lo 69 °F

 

Tonight
 
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 70. Calm wind.
Saturday
 
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 2pm. Patchy fog before 7am. Otherwise, mostly sunny and hot, with a high near 92. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
 
A chance of showers and thunderstorms. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 30%.
Sunday
 
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 7am. Otherwise, mostly sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
 
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Monday
 
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 92. Calm wind becoming west around 5 mph. Chance of precipitation is 40%.
Monday Night
 
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly clear, with a low around 69. Calm wind.
Tuesday
 
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 94.
Tuesday Night
 
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69.
Wednesday
 
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 94.
Wednesday Night
 
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
 
Showers likely and possibly a thunderstorm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 60%.
Thursday Night
 
Showers and thunderstorms likely. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Friday
 
Showers and thunderstorms likely. Mostly sunny and hot, with a high near 92. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Kingsport TN.

Weather Forecast Discussion
502
FXUS64 KMRX 120002
AFDMRX

Area Forecast Discussion
National Weather Service Morristown TN
802 PM EDT Fri Jul 11 2025

...New AVIATION...

.SHORT TERM...
(This evening through Saturday)
Issued at 135 PM EDT Fri Jul 11 2025

Key Messages:

1. Isolated to scattered showers and storms will continue until
this evening. No severe weather is anticipated, but any stronger
storms may produce wind gusts up to 40 mph as well as heavy
rainfall and isolated flooding.

2. Diurnal convection again on Saturday, but slightly higher
probabilities of an isolated severe storm or two. Damaging winds
up to 60 mph and heavy rainfall are the main concerns.

Discussion:

Diurnal showers and storms continue until this evening. The
greatest coverage should be across the high terrain of the
Cumberland Plateau, and the east TN, southwest NC, and southwest
VA mountains. Severe weather is not expected. However, any
stronger storm will be capable of producing wind gusts up to 40
mph as well as heavy rainfall. Isolated flooding is possible for
any location that receives repeated rounds. Showers and storms
will decrease in coverage this evening, though an isolated shower
or storm overnight can`t be ruled out. Any area that relieves
rainfall today or tonight will likely have fog develop overnight,
some of which may be locally dense.

Diurnal showers and storms are expected again tomorrow. However,
there are slightly higher probabilities that we see an isolated
severe storm or two. This is due to an increase in 0-6km bulk
shear. CAMs are still showing around 20kts, which is enough for
slightly more storm organization compared to summer-time pulse.
The main threats will be damaging wind gusts up to 60 mph and
heavy rainfall, which could lead to flooding.

&&

.LONG TERM...
(Saturday night through next Friday)
Issued at 135 PM EDT Fri Jul 11 2025

Key Messages:

1. Zonal flow pattern through the period. The result, daily,
diurnal, summer-time convection continues.

2. Hot conditions return as an upper ridge builds back into the
region for the middle part of the work week, with heat indices in
the mid 90s to near 100F becoming more common across valley
locations.

Discussion:

A trough approaches Sunday but high pressure to our south will
likely keep this feature north. This results in zonal flow across
the forecast area. Zonal flow will continue through the end of the
period, which will be conducive for daily, diurnal, showers and
storms. Another trough approaches late in the week, but high
pressure may yet again keep this feature to our north. Overall,
any potential severe threat seems rather low but we will continue
to monitor hi-resolution models as they come into temporal scale.

Main weather message will be to focus on the return of hot
conditions with heat indices potentially climbing back into the
mid 90s to near 100F Tuesday and Wednesday.

&&

.AVIATION...
(00Z TAFS)
Issued at 740 PM EDT Fri Jul 11 2025

A few isolated showers/storms currently on radar will continue to
diminish late this evening. Maintained IFR mentions at TRI where
HREF probabilities of fog and low cigs are greatest but also
included tempo at CHA given they did observe a thunderstorm
earlier this afternoon. Any reduced flight conditions will
improve within a few hours after sunrise. Additional scattered
thunderstorm development is expected Saturday afternoon.
Conditions will be VFR outside any convection directly impacting
a terminal.

&&

.PRELIMINARY POINT TEMPS/POPS...
Chattanooga Airport, TN             72  93  72  95 /  10  50  10  40
Knoxville McGhee Tyson Airport, TN  72  91  72  93 /  10  40  20  40
Oak Ridge, TN                       71  90  70  92 /  10  50  20  50
Tri Cities Airport, TN              68  89  68  88 /  20  40  30  50

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
TN...NONE.
VA...NONE.
&&

$$

SHORT TERM...
AVIATION...KRS
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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