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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: 8:32 am EDT Jun 21, 2026
 
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm.  Mostly sunny, with a high near 91. South wind 3 to 8 mph.
Chance
T-storms

Tonight

Tonight: Mostly clear, with a low around 74. South wind 3 to 7 mph.
Mostly Clear

Monday

Monday: Mostly sunny, with a high near 92. Heat index values as high as 105. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Mostly Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 76. Southwest wind around 9 mph.
Mostly Clear

Tuesday

Tuesday: A slight chance of showers, with thunderstorms also possible after 11am.  Mostly sunny, with a high near 95. West wind 9 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms

Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 75.
Slight Chance
T-storms

Wednesday

Wednesday: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 94.
Mostly Sunny
then Chance
T-storms
Wednesday
Night
Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am.  Mostly cloudy, with a low around 76.
Chance
T-storms

Thursday

Thursday: A 40 percent chance of showers and thunderstorms, mainly after 8am.  Partly sunny, with a high near 91.
Chance
Showers then
Chance
T-storms
Hi 91 °F Lo 74 °F Hi 92 °F Lo 76 °F Hi 95 °F Lo 75 °F Hi 94 °F Lo 76 °F Hi 91 °F

 

This Afternoon
 
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 91. South wind 3 to 8 mph.
Tonight
 
Mostly clear, with a low around 74. South wind 3 to 7 mph.
Monday
 
Mostly sunny, with a high near 92. Heat index values as high as 105. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Monday Night
 
Mostly clear, with a low around 76. Southwest wind around 9 mph.
Tuesday
 
A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 95. West wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
 
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.
Wednesday
 
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Wednesday Night
 
A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 76.
Thursday
 
A 40 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 91.
Thursday Night
 
A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 75.
Friday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Friday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Saturday
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.

 

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

Weather Forecast Discussion
142
FXUS62 KCHS 211037
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
637 AM EDT Sun Jun 21 2026

.WHAT HAS CHANGED...
The Aviation section was updated for the 12z TAFs.

&&

.KEY MESSAGES...
- 1) A fairly typical summertime pattern is forecast with daily
  shower and thunderstorm chances through the week.

&&

.DISCUSSION...
KEY MESSAGE 1: A fairly typical summertime pattern is forecast
with daily shower and thunderstorm chances through the week.

Through tonight, a classic summertime airmass will prevail with
the region positioned along the west side of Atlantic high
pressure centered to the southeast of Bermuda. Warm and humid
conditions within a weakly forced environment will support
isolated to perhaps scattered showers/tstms this afternoon which
could linger into the evening hours, especially across Southeast
Georgia where some of the high resolution CAMs suggest a more
concentrated band of weakening convection could spread north of
the Altamaha River along an outflow boundary closer to sunset.
Guidance suggests a subtle mid-level shortwave will pass west-
east over the Lowcountry and Southeast Georgia during peak
heating. No meaningful forcing is noted with various model
cross sections highlighting very little, if any, upward vertical
velocities (UVVs) with this feature. Convection will likely
remain pulsy in nature with updrafts being heavily influenced
by mesoscale processes such as boundary collisions. An isolated
strong to locally severe tstm will be possible just about
anywhere where updrafts can become locally enhanced.
Strong/damaging winds, frequent cloud-to-ground lightning and
locally heavy rainfall will be the primary hazards. Pops 30-50%
were highlighted for today with the highest pops confined to
areas near the Altamaha River. Convection will gradually wind
down this evening with dry conditions expected to prevail
through the overnight hours. Highs today will warm into the
upper 80s/lower 90s away from the beaches with a few mid 90s
possible across interior Southeast South Carolina where
influences from morning stratus over Southeast Georgia and
possibly far southern South Carolina will be less. Lows tonight
will range from the lower 70s inland to the upper 70s at the
beaches and Downtown Charleston.

Monday evening, the forecast area will become positioned
between surface high pressure in the Atlantic and an approaching
cold front from the northwest. Guidance suggests the front will
move into northern Georgia and the South Carolina Midlands
Tuesday evening and then stall, remaining through the end of the
week. The mid-levels will consist of a series of weak
disturbances moving over the Southeast during the week. Isolated
showers and thunderstorms are possible Monday, with coverage
increasing Tuesday onward, owing to the front in the vicinity.
Showers and thunderstorms are expected to peak in the afternoon
and evenings when instability is highest. The threat for
organized severe weather is low, but cannot rule out a couple of
strong to severe storms.

&&

.AVIATION /12Z SUNDAY THROUGH THURSDAY/...
21/12z TAF Discussion:
KCHS/KJZI: VFR. Isolated to scattered showers/tstms could
develop just to the west of KCHS by afternoon-mid afternoon.
CAMs are mixed on exactly where convection will concentrate
which is not unusual in this type of weakly forced environment.
PROB30 for TSRA was maintained from 17-20z to account for this.
Convection should remain inland of KJZI, thus no mention was
included.

KSAV: VFR. Isolated to scattered showers/tstms are expected to
develop near the terminal later this afternoon. PROB30 for tstms
from 22-01z was maintained.

Extended Aviation Outlook: Brief flight restrictions are possible
with any showers and thunderstorms.

&&

.MARINE...
Through Tonight: A southerly flow regime near 10 kt with seas
1-2 ft will prevail through tonight with the waters positioned
along the western flanks of Atlantic high pressure.

Monday through Friday: The coastal waters will become
positioned between high pressure centered well offshore and an
approaching cold front Monday night, leading to increasing winds
and building seas. Gusts could approach 25 knots at times
Monday evening into Tuesday evening, but looks fairly marginal
for Small Craft Advisories. Conditions should stay below
advisory levels through Friday.

&&

.CLIMATE...
Record High Minimum Temperatures:

June 23:
KCHS: 78/2024
KSAV: 77/2017

&&

.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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