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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: 8:33 pm EDT May 1, 2026
 
Tonight

Tonight: Showers likely, then showers and possibly a thunderstorm after 2am.  Low around 59. Calm wind.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers

Saturday

Saturday: Showers and possibly a thunderstorm.  High near 64. North wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Showers

Saturday
Night
Saturday Night: A 30 percent chance of showers before 8pm.  Cloudy during the early evening, then gradual clearing, with a low around 48. Northwest wind 5 to 8 mph.
Chance
Showers then
Partly Cloudy
Sunday

Sunday: Sunny, with a high near 71. North wind around 6 mph.
Sunny

Sunday
Night
Sunday Night: Mostly clear, with a low around 53. Light south wind.
Mostly Clear

Monday

Monday: Sunny, with a high near 77.
Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 58.
Partly Cloudy

Tuesday

Tuesday: Mostly sunny, with a high near 80.
Mostly Sunny

Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 64.
Partly Cloudy

Lo 59 °F Hi 64 °F Lo 48 °F Hi 71 °F Lo 53 °F Hi 77 °F Lo 58 °F Hi 80 °F Lo 64 °F

Hazardous Weather Outlook
Coastal Flood Advisory
 

Tonight
 
Showers likely, then showers and possibly a thunderstorm after 2am. Low around 59. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
 
Showers and possibly a thunderstorm. High near 64. North wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
 
A 30 percent chance of showers before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 48. Northwest wind 5 to 8 mph.
Sunday
 
Sunny, with a high near 71. North wind around 6 mph.
Sunday Night
 
Mostly clear, with a low around 53. Light south wind.
Monday
 
Sunny, with a high near 77.
Monday Night
 
Partly cloudy, with a low around 58.
Tuesday
 
Mostly sunny, with a high near 80.
Tuesday Night
 
Partly cloudy, with a low around 64.
Wednesday
 
Mostly sunny, with a high near 84.
Wednesday Night
 
A 20 percent chance of showers. Mostly cloudy, with a low around 67.
Thursday
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Thursday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
 
A 20 percent chance of showers. Mostly sunny, with a high near 79.

 

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

Weather Forecast Discussion
564
FXUS62 KCHS 012318
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
718 PM EDT Fri May 1 2026

.WHAT HAS CHANGED...
The Aviation section has been updated for the 00z TAF issuance.

&&

.KEY MESSAGES...
- 1) A widespread, significant rainfall event will occur across
  the South Carolina Lowcountry and Southeast Georgia through
  Saturday.

- 2) Minor coastal flooding possible with the Friday and
  Saturday evening high tides along the lower South Carolina
  coast.

&&

.DISCUSSION...
KEY MESSAGE 1: A widespread, significant rainfall event
will occur across the South Carolina Lowcountry and Southeast
Georgia through Saturday.

The forecast philosophy for tonight into Saturday has not
changed significantly. Cyclogenesis is expected to initiate off
the South Carolina/Georgia coast overnight as a potent mid-
level disturbance over Texas propagates to the east. Isentropic
ascent is forecast to steadily strengthen overnight as a well-
defined 850 hPa front located over southern portions of Alabama
and Georgia jumps north and a southerly low-level jet nudges in
from the southwest. This should result in a steady increase in
showers/tstms overnight with the greatest coverage poised to
setup across the interior prior to daybreak closer to the 850
hPa front and axis of strongest 850-700 hPa frontogenesis. Rain
will continue to expand and spread east through the morning
hours as the strongest deep-layered forcing for ascent swings
through with the approaching disturbance and upper difluence
associated with a dual-jet structure between the polar and
subtropical jets peaks. There could be a period of enhanced
elevated instability where some negative EPV aligns with at
least two bands of strong mid-level frontogenesis, so isolated
to scattered embedded tstms are still possible (especially
Southeast Georgia into south coastal South Carolina) despite the
lack of any meaningful surface-based instability. Rain chances
will begin to quickly diminish from west-east by mid-afternoon
as the upper disturbance passes offshore and low pressure
quickly exists the area. Dry conditions should prevail Sunday
evening and linger into the overnight hours. Pops tonight range
from 50-100% (lowest along the middle Georgia coast) with 100%
pops everywhere for Saturday.

Storm total rainfall amounts of 1-2" through Saturday evening
still look on track. 01/13z NBM probabilities are as follows:
* Prob for >1": 85-95% (highest inland)
* Prob for >2": 25-55% (highest far interior Southeast Georgia)
* Prob for >3": 5-20% (highest far interior Southeast Georgia)

This represents a solid much needed rainfall given the current
drought situation, but it also looks like rainfall rates will be
low enough to keep the threat of flash flooding very low. There
could still be some minor flooding issues in low-lying and poor
drainage areas across the Charleston and Savannah metro areas
as pockets of periodic moderate to locally heavy rain move
through.


KEY MESSAGE 2: Minor coastal flooding possible with the Friday
and Saturday evening high tides along the lower South Carolina
coast.

Astronomical tide levels will peak tonight with the full moon.
Continued NE winds will maintain a notable positive tidal anomaly
for the next 24-36 hrs. Last evening`s high tide anomaly was +1.2
ft, so if we project that into this evening, we could touch 7.2 ft
MLLW in Charleston Harbor, which has prompted a Coastal Flood
Advisory for Charleston and coastal Colleton counties from 7PM
to 11 PM. It is a bit more marginal for Saturday evening since
the winds will tip to a more NNW direction which should bring
down the anomalies. We would need +1.1 ft to reach the 7.0 ft
minor coastal flood threshold, which may be a stretch based on
that wind forecast.

&&

.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
KCHS/KJZI/KSAV: Widespread IFR conditions are expected to
overspread the area tonight as low pressure begins to organize
offshore. Cigs could even approach airfield minimums at times
overnight into Saturday morning. The heaviest rains are poised
to impact all three terminals between sunrise and late morning,
with a chance for some elevated tstms. PROB30 from 13-17z was
maintained at all sites to highlight this potential. While
rainfall should begin to taper off by mid-afternoon, low clouds
look to hang around through the end of the valid TAF cycle (00z
Sunday).

Extended Aviation Outlook: Expect improving conditions Saturday
evening; otherwise, there are no concerns through Tuesday.

&&

.MARINE...
A brief period of marginal Small Craft Advisory conditions is
possible over the SC nearshore and GA offshore waters Saturday
afternoon into Saturday night as surface low pressure develops
along the SC coast. At the moment, we only have a few hrs of 25
kt wind gusts, and seas possibly reaching 6 ft over far outer
portions, so an advisory would be very marginal.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...Coastal Flood Advisory until 11 PM EDT this evening for SCZ149-
     150.
MARINE...None.

&&

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






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