Biddeford, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

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FXUS61 KGYX 131037 AAA
AFDGYX

Area Forecast Discussion...UPDATED
National Weather Service Gray ME
637 AM EDT Fri Jun 13 2025

.SYNOPSIS...
A cooler, continental high pressure will build into the region
today. Temperatures will end up some 10 degrees colder than
yesterday, but it will still be a pleasant day. An area of
showers will move along the frontal boundary early Saturday
before clearing works back in from the north in the afternoon.
With clouds and precipitation in the area, Saturday will be the
coolest day with readings only the 60s. Drier and warmer weather
returns early next week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
Update...Minor changes to reflect latest observational trends.

Previous discussion...High pressure begins to build southeast
towards the region today. As the pressure gradient that brought
us the breezy conditions yesterday relaxes...sea breezes will
develop this afternoon. Northwest winds will become south to
southeast. Between that onshore winds and change in air
mass...temps will be about 10 degrees cooler than yesterday.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/...
Tonight clouds will continue to spread into the area as a front
lifts north into New England. They will lower and thicken thru
the night...with onshore winds continuing. Temps will be a
little warmer than this morning...but overall near normal.

Showers will approach very early Sat morning...sliding mainly
across the southern half of the forecast area. This is going to
lead to an inversion of the typical temp pattern across the
forecast area. The warmest readings will be in the northern
valleys...while across the south it will struggle to the low
60s. As positioning of the front becomes more clear in the next
12 hours...PoP may be able to be raised into the likely
category...but right now the confidence is not there to go more
than 50/50.

&&

.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
1130 PM Update... Little change in the latest National Blend of
Model forecast guidance.

Previously...
Overview...

A stalled front brings cooler and unsettled conditions to
northern New England for Saturday, with gradual improvement
likely through the weekend. High pressure moves through early
next week. A building ridge across the northern US brings a
moderating trend through the remainder of the week.

Details...

Like clockwork, a stalled front brings cloudy, cool, and
showery conditions to start the weekend. The best chance for
showers looks to be through the first half of the day on
Saturday, with gradual improvement by late in the day. Temps
look likely to remain confined to the 60s for the most part.
High pressure starts to build in on Sunday, but will build in
from the northeast. This keeps a cooler and still moist easterly
flow ongoing into the area, but with some more sunshine.
Temperatures warm to near 70 across western areas, with enough
instability to create some scattered afternoon shower activity,
especially across the higher terrain.

By Monday the high moves more off the east, setting up more of
a southerly flow across the Northeast and ushering in a warming
trend. Temps warm a little more each day, from the low to mid
70s on Monday, to the 80s by Wednesday. A cold front then
approaches from the west by late in the week, but likely helps
usher in warmer temps for at least Thursday before it crosses
late next week or early next weekend.

Moisture also increases through the week on the southerly flow.
By Wednesday, scattered afternoon showers and thunderstorms
become more likely as the airmass moistens. The best chance for
these will be across the higher terrain, and will continue each
day until the front passes late week.

&&

.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Short Term...Widespread VFR conditions are expected today and
tonight. While clouds will thicken and lower tonight...any MVFR
conditions are not expected until early Sat. SHRA will skirt
along a slow moving frontal boundary with areas of MVFR CIGs and
local MVFR or lower in SHRA. VFR conditions will return from
north to south Sat afternoon.

Long Term...VFR likely then prevails during the daytime for
early to midweek next week, with nighttime valley fog possible
each night. Marine fog is possible at RKD by midweek as the
airmass moistens. Chances for scattered afternoon showers and
storms increase across interior terminals by Wednesday and
continue through late week.

&&

.MARINE...
Short Term...Winds and seas are expected to remain below SCA
thresholds thru Sat. This afternoon winds will turn from
offshore to onshore and continue that way into Sat.

Long Term...A stalled front sags southward through the weekend,
with high pressure prevailing across the water for early to
midweek next week with fair conditions. A cold front approaches
late in the week, with SCA conditions possible in southwesterly
flow ahead of the front.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...None.

&&

$$

NEAR TERM...Legro
SHORT TERM...Legro
LONG TERM...Clair/Tubbs
AVIATION...Legro
MARINE...Legro