Westbrook, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

911
FXUS61 KGYX 111827
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
227 PM EDT Sat Apr 11 2026

.WHAT HAS CHANGED...
No significant changes with this forecast.

&&

.KEY MESSAGES...
1. Temperatures start to recover on Sunday with rain showers
becoming likely from early evening through Monday morning.

2. Above normal temperatures likely Tuesday through the end of the
week with intermittent chances for showers


&&

.DISCUSSION...
KEY MESSAGE 1 DESCRIPTION...

30 to 35 kt winds aloft and strong mixing still keep conditions
breezy this afternoon and early evening, mostly in the 25-35 mph
range but can`t rule out a couple of gusts closer to 40 mph. These
will then ease closer to sunset as the daytime mixing wanes and
will continue to do so overnight as high pressure builds more
overhead. The diurnal cu will also fade by sunset with mostly clear
skies overnight and low temperatures ranging from 20s to lower 30s.
The exception will be the clouds sticking around in the mountains a
little longer, and steep lapse rates may promote a few low
topped rain or snow showers into this evening.

Light south to southwest flow sets in on Sunday as the center of the
high shifts to the south and east. This will allow temperatures
to rebound slightly with highs in the 50s pretty much areawide.
It will start out mostly sunny, but clouds will increase during the
afternoon as the next disturbance approaches from the west. There
will be a lot of low-level  dry air to overcome so showers are
expected to hold off until early evening, probably after 6pm, per
today`s 12Z CAMs.

Rain showers will then overspread the region generally in a west to
east fashion Sunday evening through Sunday night and continue over
much of the area Monday morning as a warm front lifts through the
area. These should gradually taper off from southwest to northeast
as the morning goes on, but additional showers could develop through
the afternoon. In general, still expecting 0.25"
to 0.50" of rain across central and northern areas and then
closer to 0.10" to 0.25" in southern NH. There is signal for a
stripe of higher amounts 0.50" to 1.00" in and around the mountains,
but some guidance is a little farther south with this, the HRRR in
particular.

It may be a little slow to warm up with the clouds, but some partial
clearing and continued WAA during the afternoon should allow
temperatures to reach the 60s across most of the interior, possibly
closer to 70 for southern NH. Farther east toward the Midcoast
and Augusta, more clouds could hold temps in the 50s.


KEY MESSAGE 2 DESCRIPTION...

Ensembles are in good agreement that ridging will prevail near the
East Coast through much of next week with positive height anomalies
centered near New England. This will favor above normal temperatures
with inland areas south of the mountains seeing several days with
highs in the 70s. Troughing will persist over the West for much of
next week with multiple systems tracking atop the ridge bringing
chances for showers while no particular day looks like a wash out.

High pressure briefly builds in Tuesday allowing for mostly dry
weather with a mix of sun and clouds turning mostly cloudy late in
the day. Southwest winds through at least the first part of the day
will advect warmer air into the area with highs climbing well into
the 60s with mid to upper 70s possible across southern NH and
interior western Maine. Winds will turn onshore during the afternoon
which will cool coastal areas back down into the 50s late
afternoon.

A series of systems ejecting out of the trough out West will start
to take aim at northern New England Tuesday night through Friday
morning. None of these systems look organized enough to bring
widespread rainfall but will keep chances for showers in the
forecast through the period. The first system crosses Tuesday
night with this half of Wednesday looking mostly dry. A couple
more waves are progged to cross late Wednesday into Friday
morning, although PoPs are generally 30 to 50 percent.

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
Through 18Z Sunday...Mostly VFR with northwest winds continuing to
gust 25-30kt into early this evening. The exception is MVFR
cigs possible at HIE along with a rain or snow shower. Winds
will begin diminishing around 22Z-00Z this evening and will continue
to do so tonight with VFR continuing. VFR Sunday morning with winds
becoming light and south to southwesterly by early afternoon.

Outlook...

Rest of Sunday: VFR

Sunday evening-Monday: IFR to MVFR restrictions and rain showers
becoming likely through at least Monday morning, and brief period of
LIFR can`t be ruled out. Improvement to VFR is possible for most
terminals Monday afternoon, although additional showers are
possible.

Tuesday: Mainly VFR.

Tuesday night through Thursday: Periods of MVFR in scattered
showers, otherwise periods of VFR.


&&

.MARINE...
Gusts could gust over 25 kt into early this evening and have
extended the SCA over the outer waters to account for this
possibility. The Bays could see occasional gusts to around 25 kt
but not as confident to put out an SCA there. Winds and seas
will continue to subside overnight as high pressure builds
overhead. Winds become more south to southwest Sunday afternoon
as the high slides to the south and east. These will likely
increase to SCA levels late in the day through Sunday night and
Monday as the gradient tightens as low pressure moves across
Quebec and a frontal boundary approaches.

Winds and seas generally stay below SCA thresholds Tuesday
through Thursday with winds primarily out of the south.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ150-
     152-154.

&&

$$

DISCUSSION...Combs/Schroeter