Canton

• Today

  82°high

  Patchy Fog then Mostly Sunny

  Patchy fog between 8am and 9am. Mostly sunny, with a high near 82. East southeast wind around 5 mph.

  Wind ESE 5 mph · 13% chance of precipitation

• Tonight

  57°low

  Partly Cloudy

  Partly cloudy, with a low around 57. East southeast wind 0 to 5 mph.

  Wind ESE 0 to 5 mph · 10% chance of precipitation

• Wednesday

  85°high

  Mostly Sunny

  Mostly sunny, with a high near 85. North wind 0 to 7 mph.

  Wind N 0 to 7 mph · 9% chance of precipitation

• Wednesday Night

  57°low

  Mostly Clear

  Mostly clear, with a low around 57. South wind 0 to 5 mph.

  Wind S 0 to 5 mph · 10% chance of precipitation

• Thursday

  85°high

  Mostly Sunny then Chance Showers And Thunderstorms

  A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. North northwest wind 0 to 6 mph. Chance of precipitation is 40%.

  Wind NNW 0 to 6 mph · 41% chance of precipitation

• Thursday Night

  60°low

  Chance Showers And Thunderstorms then Mostly Clear

  A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 60. Chance of precipitation is 40%.

  Wind NW 0 to 3 mph · 35% chance of precipitation

• Friday

  85°high

  Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms

  A slight chance of showers and thunderstorms between 8am and 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers and thunderstorms likely. Mostly sunny, with a high near 85. Chance of precipitation is 60%.

  Wind NNW 1 to 5 mph · 59% chance of precipitation

• Friday Night

  59°low

  Chance Showers And Thunderstorms then Partly Cloudy

  A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 50%.

  Wind WNW 0 to 3 mph · 51% chance of precipitation

• Saturday

  83°high

  Showers And Thunderstorms Likely

  A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 70%.

  Wind SSE 0 to 5 mph · 65% chance of precipitation

• Saturday Night

  58°low

  Showers And Thunderstorms Likely then Partly Cloudy

  Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 70%.

  Wind SSW 3 mph · 65% chance of precipitation

• Sunday

  83°high

  Showers And Thunderstorms Likely

  A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 60%.

  Wind SSE 3 mph · 64% chance of precipitation

• Sunday Night

  58°low

  Showers And Thunderstorms Likely

  Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

  Wind SW 2 mph · 64% chance of precipitation

• Monday

  80°high

  Showers And Thunderstorms

  A chance of rain showers between 8am and 2pm, then showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 80%.

  Wind S 3 mph · 77% chance of precipitation

• Monday Night

  56°low

  Showers And Thunderstorms

  Showers and thunderstorms. Mostly cloudy, with a low around 56.

  Wind SW 3 mph · 77% chance of precipitation

The reasoning behind the forecast, in the forecaster’s own words. In this region the elevation detail that never reaches a point forecast usually shows up here.

000
FXUS62 KGSP 151055
AFDGSP

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
655 AM EDT Tue Sep 15 2026

.WHAT HAS CHANGED...
No significant changes were made to the forecast.

The aviation discussion was updated for the 12z TAFs.

&&

.KEY MESSAGES...
1. Warm late summer weather will continue, with shower and
thunderstorm chances increasing through the weekend. The risk
for impactful weather appears low until we get to early next week.

&&

.DISCUSSION...
Key message 1: Warm late summer weather will continue, with shower
and thunderstorm chances increasing through the weekend. The risk
for impactful weather appears low until we get to early next week.

Through the morning hours, the development of an easterly low
level flow behind the back door cold front, now well to our south,
should result in the development of cloudiness and a few showers
starting near the Blue Ridge Escarpment and spreading outward
from there. The evening shift raised precip chances over the NC
foothills and they might have to be raised a bit more, but at
least any rain should be beneficial.

A fairly interesting, but ultimately benign, slow evolution of
the weather pattern is expected over the next week or so. The
mid/upper anticyclone over the TN Valley region this morning should
drift back to the west slowly through Wednesday night, but with
a ridge axis extending across the central Appalachians to the
Mid-Atlantic. This will continue to support a weak elongated sfc
high off the Mid-Atlantic to New England coastal region that will
more or less maintain the weak and dry cold air damming regime of
sorts over our region. The effect will be minimal as moisture is
lacking and support for precip is also lacking. So, as temps cool
back down close to normal for today, in part due to an expected
late start with some morning clouds and a few showers, that won't
last long. Air mass modification will allow for a steady increase
in high temps through the week, back up into the 90s by Thursday
and Friday. We aren't done with summer yet. By Thursday we get
right back to the summertime climo precip probs with chances over
the mtns, and the precip probs expand outward and upward each day
through the weekend. None of this looks terribly significant at
this point.

Once we get into early next week, the situation may change a bit
depending on what happens with a weak mid-level low that tracks
westward across the FL peninsula and then possibly stalls over the
nrn Gulf Coast on Monday. At a minimum, better moisture flux from
either the Atlantic or the Gulf is expected by Monday, so precip
probs increase accordingly. Confidence is too low out on the Day
6-7 periods, but suffice to say the threat for excessive rain will
start to creep upward.

&&

.AVIATION /12Z TUESDAY THROUGH SATURDAY/...
At KCLT and elsewhere: Stratus has already developed over portions
of the area as a backdoor front slides further south from the 
region. Cloud bases have lowered to MVFR, with sporadic IFR 
possible. Placed a prevailing line for MVFR cigs at all TAF sites, 
but confidence is too low for an IFR mention at this time. Can't 
rule out an isolated shower at through mid-morning, but confidence 
is too low for a TAF mention at this time. The low stratus will 
gradually lift and scatter out late this morning into the early 
afternoon. This will bring a return to VFR conditions by this time, 
with some lingering VFR cu and mid to high clouds around through the 
afternoon and evening. Winds are mostly east to northeasterly at 5-
10 kts and could get as high as 8-12 kts around daybreak before 
losing steam by this afternoon behind the front. Guidance has hinted 
at possible stratus overnight again across portions of the area, 
which could lead to some instances of restrictions, mainly over KAVL 
and possibly the Upstate sites.

Outlook: Mostly dry conditions are expected to persist through the
middle of the week. Shower chances and associated restrictions
increase later in the week. Mountain valley fog and low stratus
is possible each morning through the week.

&&

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

&&

$$

CAC/PM