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Five Forks, South Carolina 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for 3 Miles SSW Pelham SC
National Weather Service Forecast for: 3 Miles SSW Pelham SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 1:29 pm EDT Jul 20, 2025
 
This
Afternoon
This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 94. Heat index values as high as 102. West wind around 8 mph.
Slight Chance
T-storms

Tonight

Tonight: Mostly clear, with a low around 74. West northwest wind 3 to 6 mph.
Mostly Clear

Monday

Monday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 96. Heat index values as high as 105. Southwest wind 3 to 5 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunny then
Chance
T-storms
Monday
Night
Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 73. West northwest wind around 6 mph becoming north in the evening.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms

Tuesday

Tuesday: Showers and thunderstorms likely, mainly after 4pm.  Mostly sunny, with a high near 90. East northeast wind 6 to 8 mph.  Chance of precipitation is 60%.
Slight Chance
T-storms then
T-storms
Likely
Tuesday
Night
Tuesday Night: Showers and thunderstorms likely before 11pm, then a chance of showers.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
T-storms
Likely then
Chance
Showers
Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 88.
Mostly Sunny
then Chance
T-storms
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 70.
Partly Cloudy

Thursday

Thursday: A 30 percent chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 89.
Mostly Sunny
then Chance
T-storms
Hi 94 °F Lo 74 °F Hi 96 °F Lo 73 °F Hi 90 °F Lo 70 °F Hi 88 °F Lo 70 °F Hi 89 °F

Hazardous Weather Outlook
Heat Advisory
 

This Afternoon
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 102. West wind around 8 mph.
Tonight
 
Mostly clear, with a low around 74. West northwest wind 3 to 6 mph.
Monday
 
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 105. Southwest wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
 
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73. West northwest wind around 6 mph becoming north in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
 
Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 90. East northeast wind 6 to 8 mph. Chance of precipitation is 60%.
Tuesday Night
 
Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Wednesday
 
A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 88.
Wednesday Night
 
Partly cloudy, with a low around 70.
Thursday
 
A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 89.
Thursday Night
 
Partly cloudy, with a low around 72.
Friday
 
Sunny, with a high near 92.
Friday Night
 
Partly cloudy, with a low around 72.
Saturday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Saturday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
 
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.

 

Forecast from NOAA-NWS for 3 Miles SSW Pelham SC.

Weather Forecast Discussion
610
FXUS62 KGSP 201803
AFDGSP

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
203 PM EDT Sun Jul 20 2025

.SYNOPSIS...
Hot and humid summertime weather will persist through Monday, with
daily afternoon and evening shower and thunderstorm chances then an
even greater coverage on Tuesday.  A few storms could produce
damaging wind gusts and localized flash flooding each day. A weak
cold front slowly crosses the area from late Monday into Tuesday.
Behind that front, high pressure to the north could bring
temperatures closer to normal for the middle part of the week.

&&

.NEAR TERM /THROUGH MONDAY/...
As of 200 PM Sunday: Upper level anticyclone will continue to
drift toward the NW into the Lower MS Valley, while a trough
digs into the Northeast. The better flow will stay north of the
area, with a series of embedded shortwaves crossing the Central
Appalachians. Hot and humid air mass remains across the area. Heat
indices are currently pushing into the triple digits across much
of the Upstate and GA Piedmont. Guidance is in decent agreement
on scattered convection initiating across the mountains, then
drifting SE into the Piedmont. A weak downslope flow will somewhat
inhibit updrafts as storms try to develop off the escarpment. Like
yesterday, weak shear, limited DCAPE, and modest MLCAPE should keep
the severe threat on the low side. Cannot rule out an isolated
damaging wind gust where storms maximize the aftn insolation or
merge. Convection should wane this evening. Cloudiness may linger
near the TN border thru the night thanks to NWLY upslope flow,
which may limit valley fog development. Otherwise, skies should
become mostly clear with lows remaining a few degrees above normal.

Monday, upper-level flow will amplify with ridging to our west
and troughing to our east. This will allow a backdoor cold
front to slip south across the Mid-Atlantic and into western NC
by the aftn. This should provide a focus for convection along
with increasing bulk shear slightly. The 12z CAMs suggest a few
southward-moving multi-cell clusters may track across the region,
but disagree on the exact locations.  Even then, convection does
not look all that organized. The environment will likely support at
least a few strong to severe storms, with damaging wind gusts being
the main threat. Likely PoPs in the mountains and chc PoPs east
looks reasonable. The approaching front may help pool BL moisture
and limit dewpts mixing out. This combined with the building heat
of the last few days and subtle NWLY downslope flow will result in
a better chance for heat indices to get into the 105-109 deg range
across much of the Piedmont of NE GA, Upstate SC, and southern NC.
After collaborating with neighboring offices, have decided to
issue a Heat Advisory for those areas from noon to 8 PM tomorrow.

&&

.SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/...
Key Messages:

1) Showers and thunderstorm chances decrease into midweek.

2) Drier and cooler air filter into the area from the north by
Tuesday.

As of 105 PM EDT Sunday: A surface high builds in to the far
northeastern portion of the CONUS, setting up a warm season wedge by
Tuesday. Latest guidance has backed off a tad on the amount of drier
air filtering in, but by Wednesday, should have a noticeable
decrease in dewpoints. Meanwhile, the upper ridge amplifies and
slides eastward as a trough from western Canada dips down along the
west coast. The eastern fringe of the ridge continues to migrate
east while the axis shifts into the Tennessee Valley and cuts off
the majority of any shortwave energy into the region. NW flow
remains in place Tuesday with plenty of moisture and instability
available. This should keep shower and thunderstorm chances higher
(70-90%) across the mountains and 50-70% elsewhere. This could
change is the drier air from the north can reach the CWA before the
afternoon, but guidance has backed off on that aspect. So expect the
typical diurnally driven convection Tuesday. By Wednesday, more
subsidence aloft with the center of the ridge closer to the CWA and
the enhanced NE surface flow filtering in the drier air, reduces
convective chances. Mountains retain chance PoPs (50-60%) and slight
chance (15-35%) elsewhere. The better news is this cold air damming
provides a brief break in the hotter temperatures and heat indices.
Daytime temps look to be at if not slightly below normal Tuesday and
Wednesday. Overnight lows also dip into the upper 60s, especially in
the NC Pediment where the drier air remains reinforced.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
Key Messages

1) Typical summertime showers and thunderstorms increase each day
through the period.

2) Temperatures and humidity increase toward the end of the week and
into next weekend.

As of 115 PM EDT Sunday: As Wednesday night approaches, the surface
high pressure off to the north continues to migrate eastward,
bringing winds around from the east. This begins the breakdown of
the break in heat as increase moisture advection from the Atlantic
starts to move westward. PWATs by Thursday increase once again into
the 2.00 inch plus range, which pushes up those dewpoints and
returns the area into the typical summertime humidity. Meanwhile,
the ridge over the Tennessee Valley starts to de-amplify a bit as
another one forms out west. At the surface, the Bermuda high returns
and retrogrades westward through the end of the forecast period. At
the same time, high pressure out west expands eastward and in
between these two highs is the southeast. This returns more
southerly surface winds and a conveyer belt of training moisture
advection into the CWA through the period. Guidance increases
convective chances and returns to the more typical July pattern.
Unfortunately, this also returns the area to the repugnant hot
temperatures and utmost grossness of the ever oppressive fist of
summer.

&&

.AVIATION /18Z SUNDAY THROUGH FRIDAY/...
At KCLT and elsewhere: VFR conditions will prevail through the
majority of the TAF period at most terminals. A few isolated
instances of fog will continue through sunrise, but no impacts are
expected at any TAF sites. Afternoon/evening thunderstorms will once
again grace the area, but coverage could end up being notably less
compared to the last few days. Nonetheless, the potential will exist
for brief impacts at any given terminal depending on where storms
develop and track. Mountain valley fog will be possible again
tonight.

Outlook: Daily thunderstorm chances will continue through early
next week each afternoon and evening. Low stratus and/or fog are
possible each morning, especially across the mountain valleys. Drier
air may filter in from the north Wednesday, resulting in little
to no convection east of the mountains thru Thursday.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...Heat Advisory from noon to 8 PM EDT Monday for GAZ018-026-028-
     029.
NC...Heat Advisory from noon to 8 PM EDT Monday for NCZ070>072-082.
     Heat Advisory until 8 PM EDT this evening for NCZ071-072-082.
SC...Heat Advisory from noon to 8 PM EDT Monday for SCZ008>014-019-
     104>109.

&&

$$

SYNOPSIS...DEO
NEAR TERM...ARK
SHORT TERM...CP
LONG TERM...CP
AVIATION...ARK
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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