North Charleston, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

807
FXUS62 KCHS 252315
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
615 PM EST Thu Dec 25 2025

.SYNOPSIS...
High pressure will prevail through the remainder of the holiday
week. A cold front will move through the area early next week.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Early this evening: Very quiet conditions across the forecast
area under clear skies with high pressure situated to the south
and a cold front to the north. Skies should remain mostly clear
for most of the night. The aforementioned front will approach
from the north late and could just get into Berkeley and
Charleston counties around or just after sunrise. This could
bring some stratus or stratocumulus with it, but will have
little to no impact on the forecast. Lows are forecast to fall
into the low to mid 50s in most areas.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/...
On Friday, a backdoor cold front should remain just north of
the area during the morning. The front may begin to lift
northward as a clipper dives across the Ohio River Valley during
the daylight hours. Conditions should remain dry with high
temperatures ranging from near 70 across the I-26 corridor to
the upper 70s across SE GA.

On Saturday, the center of a 585dm ridge will shift over the
eastern Gulf, with the ridge axis remain just west of the
forecast area. Given mostly sunny conditions and very mild llvl
thicknesses, Saturday is forecast to see some of the warmest
temps of the week, featuring lows in the mid 50s and highs in
the mid to upper 70s. In fact, temperatures may range within 3
degrees of record high temperatures for Saturday, see Climate
section.

By Sunday, the forecast area should remain between high
pressure centered over the western Atlantic and low pressure
over the Great Lakes region. This pattern should provide the
forecast area with light south winds and increasing cloud cover.
Temperatures will remain well above normal, with lows in the
low to mid 50s and highs well into the 70s.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
12Z guidance shows a strong cold front remain west of the CWA
prior to sunset on Monday. Monday is forecast to remain very
mild with highs favoring the mid 70s. Physics-based and AI
models indicate that a band of light rain showers may develop
along and ahead of the front on Monday. The forecast will
feature 20-30 PoPs for showers.

Conditions should turn sharply cooler for Tuesday and
Wednesday. The coldest conditions forecast for Tuesday night /
Wednesday morning, with low temperatures in the upper 20s to low
30s. The cold temperatures combined with wind speeds around 5
mph may result in wind chill values in the low to mid 20s
degrees across the inland counties. LREF probs of wind chill
values less than 20 peaks across inland GA with values around 20
percent.

&&

.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
The 00z TAF period begins with VFR conditions under clear skies.
The main forecast challenge revolves around a backdoor front
that will sag into the the KCHS and KJZI vicinity around or just
after sunrise Friday. As the front drops in it could bring an
area of stratus or stratocumulus with it, potentially producing
a period of restricted ceilings. However, the southern extent of
the stratus remains unclear with plenty of mixed signals in
model guidance. For now we have kept the forecast VFR, but there
is potential for MVFR. If MVFR conditions develop, these
ceilings could hang around into the afternoon hours at KCHS and
KJZI. The threat of ceilings at KSAV is very low at this time.

Extended Aviation Outlook: VFR. Gusty winds are possible on
Monday.

&&

.MARINE...
Tonight: Sfc cold front dives southward along the Atlantic
coast late this evening. Marine concerns are not anticipated at
this time, with seas between 2-3 ft and gusts up to 15 kts.

Friday through Tuesday: Conditions will remain below Small
Craft Advisory criteria through Sunday. Winds will average less
than 15 knots with seas 2-4 feet. The main time period of
concern is Monday into Tuesday as a strong cold front approaches
and sweeps across the Atlantic waters. Winds could develop
gusts around 25 kts with seas up to six feet, especially across
the outer GA and nearshore Charleston County waters.

&&

.CLIMATE...
Record High Temperatures:

December 27:
KCHS: 78/2021
KCXM: 76/2015
KSAV: 80/2015

&&

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

&&

$$

NEAR TERM...BSH
SHORT TERM...NED
LONG TERM...NED
AVIATION...BSH/NED
MARINE...NED/SST