Marietta, Georgia 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

950
FXUS62 KFFC 181855
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
155 PM EST Thu Dec 18 2025


...Afternoon Area Forecast Discussion...

.KEY MESSAGES...
Updated at 148 PM EST Thu Dec 18 2025

 - Weather will remain dreary through tonight, with a chance for
   an isolated strong thunderstorm after dark, but quickly begin
   to improve on Friday following the passage of a cold front.

 - Generally dry through the long term period, with temperatures
   warming to well above average by Christmas Day.


&&

.SHORT TERM...
(This afternoon through Friday)
Issued at 148 PM EST Thu Dec 18 2025

A mixed bag of clouds and scattered light rain/drizzle blanket North
and Central Georgia this afternoon. The lack of insolation due to
broken and overcast skies has kept temperatures on the cooler side
today with current readings in the 50s to low 60s (several degrees
cooler in the mountains). Not anticipating temperatures to rise
all that much over the next several hours so `high` temperatures
are likely to be within a few degrees of what they are now. A
shortwave will sweep a cold front through the area overnight and
will be accompanied by a broken line of rain showers and isolated
thunderstorms. While instability will overall be lacking and it is
largely anticipated that storms will be elevated in nature, there
is a low chance that a stronger surface based storm could make it
into our area (namely NW/W Georgia). Deep layer shear and a
midlevel jet support this idea, though as the system lifts
northeast our area will become farther removed from the mid/upper
level support -- thus decreasing any small threat of stronger
storms for the remainder of the area. SPC has painted a Marginal
Risk area (Level 1 of 5) for portions of Middle TN and North AL
just to our NW.

In wake of a cold front, drier and cooler air will begin to filter
into the area as high pressure nudges in from the west. We`ll see a
brief return of widespread at or below freezing temperatures Friday
Night/Saturday Morning as radiational cooling takes effect.
Temperatures will begin to rebound as we head into the weekend.


&&

.LONG TERM...
(Saturday morning through next Wednesday)
Issued at 148 PM EST Thu Dec 18 2025

As we enter the weekend and the start of the long term period on
Saturday, the Southeast will be mild and post-frontal. After a
chilly start (temperatures in the 20s to near 30) that morning
thanks to strong radiational cooling overnight, expect a fairly wide
swing in diurnal temperature range as afternoon highs surge into the
upper 50s to mid-60s under sunny skies.

On Sunday, a frontal boundary riding along the leading edge of a
surface high pressure system making its way southeastward across the
Northern Plains will support low-end (20% or less) chances for light
showers across portions of northwest and west central Georgia
through the early afternoon. Weakly-bolstered moisture will be
effaced quickly as a much drier airmass filters in in its wake, and
currently, forecast rainfall totals are near zero -- so expect most
to remain dry as we close out the weekend.

Moving into next week, with surface high pressure taking up
residence across the mid-Atlantic and eventually retrograding across
the Southeast, expect generally dry and gradually warming conditions
to continue. Ridging is progged to build in across central CONUS at
the mid-levels through mid-week, and a few passing disturbances in
progressively more northwesterly flow may support weak precipitation
chances (currently <15%) across the northern half of the forecast
area from their glancing blows. Not looking like any locales will
receive meaningful rainfall at this time.

Notably, the aforementioned pattern supports warming temperatures
under subsidence. Monday will be the coolest in the extended, with
weak wedging dropping highs into the lower 50s to near 60. From
there, temperatures will warm fairly substantially into the mid-60s
to mid-70s by Wednesday -- as much as 13 to 20 degrees above
average (!). Sadly, it`s looking like a t-shirt Christmas this year.

&&

.AVIATION...
(18Z TAFS)
Issued at 1251 PM EST Thu Dec 18 2025

Mixed bag of cigs ranging VFR to IFR and sct -shra blanket all
sites this afternoon. As moisture surges into the area expect this
trend to continue with cigs gradually lowering through 00z. May
see a brief decrease in coverage of shra/ra around 00z but a
broken line of shra and isolated tsra will accompany a FROPA
between 03 to 10z Friday. Winds will shift from SE to SW to NW
with the FROPA and gusts 20-25kts are likely with and following
the FROPA. Skies quickly clear behind the front on Friday.

//ATL Confidence...18Z Update...

Medium confidence on all elements.

07

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          43  53  30  58 /  90   0   0   0
Atlanta         41  52  32  60 /  60   0   0   0
Blairsville     33  44  28  55 /  90   0   0   0
Cartersville    38  51  27  61 /  90   0   0   0
Columbus        45  57  31  62 /  50   0   0   0
Gainesville     41  52  31  57 /  90   0   0   0
Macon           46  58  30  62 /  80   0   0   0
Rome            39  52  29  63 /  90   0   0   0
Peachtree City  40  53  29  62 /  60   0   0   0
Vidalia         54  64  33  64 /  80   0   0   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

SHORT TERM...07
LONG TERM....96
AVIATION...07