Lisbon, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

288
FXUS61 KGYX 141056
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
556 AM EST Sat Feb 14 2026

.WHAT HAS CHANGED...
Adjusted temperatures across some of the northern valleys where
efficient radiational cooling allowed temperatures to fall
below zero. Temperatures should level off or even come up a
couple of degrees with clouds moving in.

&&

.KEY MESSAGES...
1. Mild temperatures around or above seasonal averages are expected
through this weekend with even warmer temperatures likely through
midweek next week.

2. A frontal boundary moves through on Sunday, bringing
isolated, low impact chances of snow showers. The long term
pattern supports active weather next week, with the potential
for more widespread precipitation later in the week.

&&

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

An upper low will gradually move down from central Quebec this
morning, to around the crown of Maine by this evening. After this
low moves off into the Atlantic on Sunday, the pattern will
transition to mean zonal flow aloft with little ripples of low
amplitude troughing and ridging here and there through much of the
the work week. This will mean that temperatures should remain at or
just above seasonal averages for this time of year today and Sunday
with even warmer conditions expected through at least mid week.
Highs today and Sunday will mainly range from the low to mid 20s
north, to the mid 30s south. By Monday, we could see some afternoon
highs in the lower 40s creeping in across southern New Hampshire and
coastal Maine. Tuesday should then see widespread highs in the 40s
with a few lower 50s even possible over southern New Hampshire or
southwest Maine. Above normal temperatures then continue through
midweek with a potential cool down returning at the end of the week.

KEY MESSAGE 2 DESCRIPTION...

A upper-level trough will deepen over the northeast this weekend as
a frontal boundary moves southward across eastern Maine. The
low will allow for some snow showers and perhaps a snow squall
to develop over central Maine Saturday night.

By the end of next week, a weak system looks to move across the
northeast from northwest to southeast. Storm track remains
uncertain, but guidance is showing a general consensus of a
southerly track across southern New England. This track would put NH
and Maine in the colder and drier section of the low, with the most
snowfall appearing to fall across southern and western NH. Storm
timing is still fairly uncertain as well, with some members showing
the low could arrive as early as Wednesday night and as late as
Thursday afternoon. Either way, it should be a quick moving system
and it is not likely people will see notable impacts from the
aforementioned low.

&&

.AVIATION /12Z SATURDAY THROUGH WEDNESDAY/...
Through 12z Sunday: Clouds will continue to fill in early this
morning. Ceilings should remain in VFR categories, but HIE could
see some lower ceilings with low SHSN chances through this
afternoon. Brief IFR visibilities will be possible under any
heavier shower that moves overhead. This activity should taper
this evening. VFR tonight.

Outlook...

Sunday: VFR

Sunday night-Monday night: Some light snow showers may bring
localized brief MVFR/IFR conditions Sunday night into Monday with
MVFR ceilings common during this time as well. This is more likely
at western TAF sites.

Tuesday: SHSN possible with MVFR/IFR.

Wednesday-Thursday: A disturbance may bring SN to the region,
potentially lowering restrictions at terminals over southern
NH. Confidence is low.

&&

.MARINE...
High pressure continues to nose into the region this morning, with a
cold front expected to arrive by this evening. This will result in
SCA conditions tonight through Sunday morning with some gusts
across the outer waters up to 30 knots. Conditions may remain
below SCA through early next week, but disturbances arriving mid
to late week look to bring an uptick in winds and thus seas
that may require additional headlines.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...Small Craft Advisory from 1 AM to 1 PM EST Sunday for ANZ150-
     152-154.

&&

$$

DISCUSSION...Combs/Hargrove/Palmer