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North Charleston, South Carolina 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for 2 Miles SSE Charleston Air Force Base SC
National Weather Service Forecast for: 2 Miles SSE Charleston Air Force Base SC
Issued by: National Weather Service Charleston, SC
Updated: 4:01 am EDT Jul 22, 2026
 
Today

Today: A slight chance of showers and thunderstorms between 9am and noon.  Partly sunny, with a high near 93. Heat index values as high as 105. South wind 7 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Partly Sunny
Tonight

Tonight: Partly cloudy, with a low around 80. South wind 8 to 11 mph, with gusts as high as 20 mph.
Partly Cloudy

Thursday

Thursday: Mostly sunny, with a high near 96. Heat index values as high as 105. Southwest wind 6 to 10 mph.
Mostly Sunny

Thursday
Night
Thursday Night: Mostly cloudy, with a low around 79. South wind 5 to 9 mph.
Mostly Cloudy

Friday

Friday: A slight chance of showers, then showers and thunderstorms likely after 11am.  Partly sunny, with a high near 93. South wind 3 to 7 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Slight Chance
T-storms then
T-storms
Likely
Friday
Night
Friday Night: Showers and thunderstorms likely, mainly before 8pm.  Mostly cloudy, with a low around 77. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely

Saturday

Saturday: Showers and thunderstorms likely, mainly after 2pm.  Partly sunny, with a high near 92. Chance of precipitation is 70%.
T-storms
Likely

Saturday
Night
Saturday Night: Showers and thunderstorms likely, mainly before 8pm.  Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
T-storms
Likely

Sunday

Sunday: Showers and thunderstorms likely, mainly after 2pm.  Partly sunny, with a high near 91. Chance of precipitation is 60%.
T-storms
Likely

Hi 93 °F Lo 80 °F Hi 96 °F Lo 79 °F Hi 93 °F Lo 77 °F Hi 92 °F Lo 76 °F Hi 91 °F

 

Today
 
A slight chance of showers and thunderstorms between 9am and noon. Partly sunny, with a high near 93. Heat index values as high as 105. South wind 7 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
 
Partly cloudy, with a low around 80. South wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday
 
Mostly sunny, with a high near 96. Heat index values as high as 105. Southwest wind 6 to 10 mph.
Thursday Night
 
Mostly cloudy, with a low around 79. South wind 5 to 9 mph.
Friday
 
A slight chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 93. South wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
 
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 70%.
Saturday Night
 
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Sunday
 
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Sunday Night
 
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.
Monday
 
Sunny, with a high near 95.
Monday Night
 
Partly cloudy, with a low around 79.
Tuesday
 
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 96.

 

Forecast from NOAA-NWS for 2 Miles SSE Charleston Air Force Base SC.

Weather Forecast Discussion
719
FXUS62 KCHS 220639
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
239 AM EDT Wed Jul 22 2026

.WHAT HAS CHANGED...
All sections have been updated.

&&

.KEY MESSAGES...
- 1) Smoke from the Horse Island Wildfire will impact portions
  of Berkeley County tonight into Wednesday.

- 2) Hot and humid conditions across coastal South Carolina and
  Georgia through mid-week. Heat Advisories could be needed.

- 3) A slow-moving cold front will bring increasing chances for
  showers and thunderstorms late this week through the weekend,
  with the potential for locally heavy rainfall.

&&

.DISCUSSION...
KEY MESSAGE 1: Smoke from the Horse Island Wildfire will impact
portions of Berkeley County tonight into Wednesday.

The Horse Island Wildfire near Shulerville, SC has increased to 1200
acres. A Dense Smoke Advisory has been requested by the U.S. Forest
Service for portions of Berkeley County in response to the wildfire
smoke. The latest Hysplit output shows the worst of the smoke will
remain across Berkeley County, between Jamestown and the Charleston
border, extending northeast across the Santee River into portions of
Georgetown and Williamsburg Counties. Visibilities may drop below 1
mile at times overnight, especially along parts of Highway 45. Road
closures are possible. Smoke will likely remain an issue into
Wednesday although visibilities should improve some by mid-morning
as dispersion increases and mixing heights rise.

KEY MESSAGE 2: Hot and humid conditions across coastal South
Carolina and Georgia through mid-week. Heat Advisories could be
needed.

Hot and humid conditions are expected to continue over the next 48
hours as the forecast area remains on the western periphery of
the upper ridge. With decreased moisture compared to previous
forecasts, dewpoints are expected to continue to mix into the
low 70s across inland areas keeping heat indices in the 100 to
105 range for most of the area today. While these values will
still make things rather uncomfortable they are not quite Heat
Advisory criteria. Closer to the coast, conditions will be
determined by the movement of the afternoon seabreeze. As it
moves slowly inland each afternoon, dewpoints will surge into
the upper 70s behind the boundary leading to heat indices in the
105 to 108 range. However, this will likely only be for a
couple hours during the late afternoons leading to lower
confidence in reaching advisory criteria long enought.Thursday
will be much of the same with dewpoints mixing out inland and
despite air temperatures heating up into likely the upper 90s,
Heat indices likely top out once again in the 105 to 108 range.
However, if moisture begins to come in a little more impressive
and dewpoints do not mix into the low 70s then some
considerations for an advisory would be needed.

Despite not having any Heat Advisories, conditions will still remain
rather uncomfortable and with dewpoints in the upper 70s overnight
very little relief will occur each night. Given we have set record
high minimum temperatures the last few nights, continued heat stress
through the middle of the week can be dangerous to vulnerable
communities including elderly and those who do not have access to
adequate cooling. The extreme heat is expected to come to an end by
the end of the week as increasing rain chances arrive with a slow
moving front.

KEY MESSAGE 3: A slow-moving cold front will bring increasing
chances for showers and thunderstorms late this week through the
weekend, with the potential for locally heavy rainfall.

As a mid-lvl trough situates itself across the Eastern Seaboard
today and tomorrow (Thursday), an associated cold front will slowly
progress towards the region, reaching the area on Thursday before
stalling nearby through the weekend. Forecast soundings continue to
indicate a very moist airmass, with PWAT values increasing to around
2.2 inches on Friday and up to 2.4 inches this weekend. This
combined with skinny CAPE profiles will favor efficient rainfall
production and increase the potential for localized flooding. While
most flooding impacts are expected to remain minor, repeated heavy
downpours over urban areas such as the Charleston, or Savannah Metro
areas could warrant Flood Advisories and/or even Flash Flood
Warnings.

Although still subject to change, rainfall totals of couple inches
are possible Friday through Sunday, with the highest amounts of ~3-4
inches possible in the proximity of the frontal boundary.
Additionally, locally higher totals will be possible where
thunderstorms repeatedly train over the same location. The Weather
Prediction Center (WPC) highlights portions of the region (mainly
across the South Carolina Lowcountry) in a Slight Risk of Excessive
Rainfall on Thursday, and then Marginal Risk of Excessive Rainfall
for majority of the region on Friday and Saturday.
&&

.AVIATION /06Z WEDNESDAY THROUGH SUNDAY/...
06Z TAFs: VFR conditions should prevail across the area through
the morning. Some MVFR ceilings may be possible shortly after
sunrise along coastal South Carolina possibly impacting JZI/CHS
from roughly 14 to 16Z. An isolated shower or two could
accompany the lower ceilings before clearing by 16 to 17Z
returning to VFR area wide. Winds will remain out of the south
at around 10 knots increasing to around 15 knots behind the
afternoon seabreeze. Gusts to 20 to 25 knots could be possible
behind the seabreeze during the afternoon before diminishing
around 02Z.

Extended Aviation Outlook: Chances of flight restrictions increase
later this week with a greater coverage of showers/thunderstorms.

&&

.MARINE...
Today: Breezy south-southeasterly winds will continue across the
local waters as a cold front approaches from the north and east-west
surface ridge remains to the south. This will maintain hazardous
conditions through Thursday morning. Small Craft Advisories are in
effect for all marine zones through Thursday morning. As south-
southwesterly swell tapers back, seas will range from 3 to 5 ft.

Thursday through Sunday: Small Craft Advisories are expected to end
by Thursday morning. As the aforementioned front stalls in the
vicinity, the pressure gradient will relax back and marine
conditions should become rather benign through Sunday. Seas will
range from 2 to 4 ft.

Rip Currents: A Moderate Risk of rip currents is expected to
continue along the South Carolina and Georgia beaches through this
evening. There is also a Moderate Risk tomorrow (Thursday), however
it is just for the Charleston County beaches. On Wednesday,
increasing south to south-southwest winds will support breakers of 3
to 4 ft, with occasional breakers above 4 ft possible and dominant
wave periods of 6 seconds. Although surf is expected to subside a
little bit on Thursday, a longer-period swell of around 8 seconds
should continue to support dangerous rip currents (esp. for the
Charleston County beaches).

&&

.CLIMATE...

Record High Temperatures:

July 23:
KCHS: 99/2015

July 27:
KSAV: 100/2010


Record High Minimum Temperatures:

July 22:
KCHS: 81/2011
KCXM: 83/2011

July 23:
KCHS: 80/1991
KCXM: 83/1952

July 24:
KCHS: 81/2024

July 25:
KCHS: 80/2011
KCXM: 82/2016
KSAV: 80/1893

July 26:
KCHS: 78/2025

July 27:
KSAV: 80/1885

July 28:
KCHS: 80/2025
KCXM: 84/2025
KSAV: 81/1878


&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...Dense Smoke Advisory until 10 AM EDT this morning for SCZ045.
MARINE...Small Craft Advisory until 8 AM EDT this morning for AMZ340.
     Small Craft Advisory until 5 AM EDT Thursday for AMZ360-362.
     Small Craft Advisory until midnight EDT tonight for AMZ364-384.

&&

$$

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