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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: 2:35 am EDT Aug 30, 2026
 
Overnight

Overnight: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Calm wind.
Chance
T-storms
Sunday

Sunday: A 50 percent chance of showers and thunderstorms.  Patchy fog between 7am and 8am.  Otherwise, partly sunny, with a high near 87. Calm wind becoming southeast around 6 mph in the afternoon.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms and
Patchy Fog
Sunday
Night
Sunday Night: Mostly cloudy, with a low around 75. Light and variable wind.
Mostly Cloudy

Monday

Monday: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 89. Calm wind becoming southeast around 6 mph in the afternoon.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Mostly Sunny
Monday
Night
Monday Night: Partly cloudy, with a low around 75. Light and variable wind.
Partly Cloudy

Tuesday

Tuesday: Mostly sunny, with a high near 91.
Mostly Sunny

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 75.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 92.
Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75.
Mostly Clear

Lo 73 °F Hi 87 °F Lo 75 °F Hi 89 °F Lo 75 °F Hi 91 °F Lo 75 °F Hi 92 °F Lo 75 °F

 

Overnight
 
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Sunday
 
A 50 percent chance of showers and thunderstorms. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 87. Calm wind becoming southeast around 6 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
Mostly cloudy, with a low around 75. Light and variable wind.
Monday
 
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
 
Partly cloudy, with a low around 75. Light and variable wind.
Tuesday
 
Mostly sunny, with a high near 91.
Tuesday Night
 
Mostly clear, with a low around 75.
Wednesday
 
Sunny, with a high near 92.
Wednesday Night
 
Mostly clear, with a low around 75.
Thursday
 
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Thursday Night
 
Mostly clear, with a low around 76.
Friday
 
Sunny, with a high near 95.
Friday Night
 
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Saturday
 
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.

 

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

Weather Forecast Discussion
588
FXUS62 KCHS 300544
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
144 AM EDT Sun Aug 30 2026

.WHAT HAS CHANGED...
All Key Messages and sections were updated.

&&

.KEY MESSAGES...
- 1) Rain chances to lower this week.

&&

.DISCUSSION...
KEY MESSAGE 1: Rain chances to lower this week.

Today: The synoptic pattern, both at the surface and aloft, has
changed little since yesterday. The region is still positioned
within a broad mid-level weakness between dual subtropical
ridges, one centered over the Mid-Mississippi Valley with the
second well offshore across the western Atlantic. 30/00z
guidance still analyzes a nearly continuous stream of vorticity
advecting into the region from the northeast Gulf and off the
Atlantic within a ribbon of PWATS 2.25-2.40". KCLX shows a
large area of convection beginning to develop over the west wall
of the Gulf Stream within a broad area of low-level convergence.
Convergence is expected to shift closer to the upper Georgia
and lower South Carolina coast through daybreak as winds along
the beaches back in response to inland cooling. This will induce
weak coastal troughing along the beaches. This should allow
convection over the Atlantic to translate into the Savannah-
Charleston corridor over the next few hours then gradually
lifting north across the Charleston Tri-county region and
possibly as far west as the I-95 corridor later this morning.
Convective cells will tend to slow and possibly stall or train
as they approach the coastal trough. Given the degree of
moisture in place, a risk for flooding could develop with a
quick 1-2" in an hour possible. Both the Savannah and Charleston
Metro areas, especially Downtown Charleston, need to be watched
for an isolated flood risk this morning.

How convection evolves through the afternoon/evening is in
question as much will depend on how much convection forms this
morning and the degree of atmospheric overturning. As was
observed yesterday, morning convection had a significant impact
on instability which ultimately limited the coverage and
intensity of convection. Something similar could occur today
with the 30/00z CAMS showing a number of possible outcomes, all
likely tied to the amount how much the atmosphere can recover
instability wise. For now, pops for today were limited to
40-60% along/east of I-95 with 20-40% west of there. Adjustments
will most likely be needed as trends become clearer later
today. Highs look to warm into the upper 80s/lower 90s with
lower-mid 80s closer to the immediate coast.

Tonight: Any evening convective activity should wane by early-
mid evening. Low-level convergence should shift back closer to
the west wall of the Gulf Stream late. Another weak coastal
trough could develop over the nearshore waters late tonight, but
the low-level steering flow does not look as favorable as the
past few morning. Still, a few showers/tstms could make a run
for the coast early Monday morning.

Monday: As ridging aloft continues and high pressure remains
the main surface feature, expect much of the same for Monday.
Thus, expect lower chances for rain during the morning hours,
with probabilities building into the afternoon hours as
instability increases and the sea-breeze pushes ashore. With
PWATs remaining just above 2 inches, locally heavy rainfall
cannot be ruled out from any stationary/slow moving storms,
though the risk is quite low. The eastern edge of the ridge axis
does begin to slide over the region by the afternoon hours,
which should help to raise max temperatures up into the upper
80s to lower 90s.

Tuesday through Saturday: Expect similar conditions into the
week as ridging aloft continues, though there will likely be
lesser convective coverage as the center of the ridge axis
begins to move overhead. In addition to lowering convective
potential, this will keep max temperatures in the upper 80s to
mid 90s, normal to just above normal for this time of year. The
dewpoint temperatures trend continues to suggest dewpoints
should remain in the mid 70s, keeping heat index values below
critical thresholds.

&&

.AVIATION /06Z SUNDAY THROUGH THURSDAY/...
30/06z TAFs:
KCHS/KJZI: Radar shows convection slowly expanding over the
Atlantic early this morning. This activity coupled with
additional convection forming near the beaches could impact both
terminals through daybreak. Impact chances for both KCHS and
KJZI are the greatest 10-13z. The risk for tstms is non- zero,
but given the lack of lightning activity noted offshore, a
mention of TSRA was not included for this morning. The risk for
tstms could increase by mid-afternoon as the sea breeze moves
inland. There are uncertainties on how much activity will
develop in the wake of this morning`s activity. PROB30 for TSRA
was included 17-20z at KJZI and 18-21z at KCHS to trend given
these uncertainties.

KSAV: Convection over the Atlantic looks to remain just east of
the terminal early this morning, but it could be close. Last
minute radar trends will determine the need for VCSH at
issuance time. Otherwise, some light fog could settle in by
daybreak. TEMPO for MVFR vsbys was included 10-12z. Risk for
tstms will increase mid-afternoon as the sea breeze moves
inland. There are uncertainties on how much activity will
develop in the wake of this morning`s activity. PROB30 for TSRA
was included 19-21z to trend given these uncertainties.

Extended Aviation Outlook: Showers and thunderstorms will bring
brief flight restrictions into next week, especially during the
afternoon hours.

&&

.MARINE...
Through Tonight: East/northeast winds this morning will veer
more easterly through afternoon as the sea breeze develops and
weak coastal troughing along the coast dissipates.
East/northeast winds will redevelop again tonight. Speeds look
to remain less than 15 kt (outside of convection) with seas 2-3
ft. Convection this morning could produce gusty winds, locally
heavy rainfall reducing vsbys to 1 NM or less and a few cloud-
to-water lighting strikes.

Monday through Thursday: No marine concerns expected. Light and
variable prevailing flow will shift onshore each afternoon as
the sea breeze circulation develops along the coast, with 2-3 ft
seas.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.
MARINE...None.

&&

$$
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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