Mauldin, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

272
FXUS62 KGSP 192346
AFDGSP

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
746 PM EDT Thu Mar 19 2026

.WHAT HAS CHANGED...
Brief rain shower chances have slowed to Saturday, but confidence is
very low.

&&

.KEY MESSAGES...
1. Temperatures warm through the weekend and mostly dry conditions
expected, with the potential for brief rain showers across the
mountains Saturday.
2. Warm temperatures continue Monday followed by a cold front
and cool down Tuesday through mid week.

&&

.DISCUSSION...
Key message 1: Temperatures warm through the weekend and mostly dry
conditions expected, with the potential for brief rain showers
across the mountains Saturday.

A persistent and strong ridge out west is slow to breakdown, keeping
the southeast in a NW downstream pattern through the weekend. High
pressure at the surface and continuous WAA over the next few days is
the main feature. By Friday, a weak area of low pressure from the
north dissipates, sending an even weaker cold front toward the area.
Guidance depicts the frontal boundary barely reaching the northern
mountains before mixing out. This brings a few areas of slight
chance (15-20%) PoP on Saturday, mostly confined to the mountains.
Confidence is very low on this, but a brief shower is possible.
Nothing significant or impactful expected. With the increased
moisture from the south, dewpoints also increase, making it feel
more like Spring should. Temperatures climb over the weekend, with
mid 80s likely by Sunday.


Key message 2: Warm temperatures continue Monday followed by a cold
front and cool down Tuesday through mid week.

An anomalous ridge over the Desert Southwest will flatten and weaken
by early next week as perturbed northern stream flow becomes
established from the Pacific Northwest to the Ohio Valley. One more
warm day with highs in the upper 60s to low 80s is on tap for Monday
ahead of an advancing lead shortwave trough. This trough will send a
surface cold front across the area through the day on Monday. This
will mainly be a dry frontal passage with the better forcing for
ascent displaced farther north and an overall dearth of moisture. A
few isolated showers will be possible along the Tennessee border
where mechanical ascent is maximized, but that will be the exception
and not the rule. Temperatures cool back to near seasonal averages
behind the frontal passage on Tuesday with a weak impulse
potentially bringing a few showers to the region late Tuesday into
Wednesday. Temperatures gradually recover and warm back into the
upper 60s to low 70s by Thursday as heights rise in advance of a
deeper longwave trough ejecting out of the Rockies.

&&

.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
At KCLT and elsewhere: VFR conditions to continues thru the TAF
period. Light winds overnight, picking up out of the SW late
Friday morning, with low-end gusts expected across the Upstate
and KCLT in the aftn. Some increasing high clouds Friday aftn,
but no low-level moisture expected thru the period.

Outlook: VFR expected through the weekend. A largely dry cold front
will cross the area Monday, which may bring brief restrictions
with isolated showers.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.

&&

$$

ARK/CP/TW