Auburn, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

150
FXUS61 KGYX 290006
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
806 PM EDT Sun Jun 28 2026

.WHAT HAS CHANGED...
Minor update to the Aviation section for the 00Z TAFs.

&&

.KEY MESSAGES...
1. Pleasant conditions, with a few passing showers this
afternoon/evening, continue through Monday.

2. Hot and Humid conditions arrive this week, with near record
breaking heat increasingly likely for mid to late week. Any
preparations, such as installing air conditioning units, would
best be completed early this week before the hottest conditions
begin on Wednesday.

&&

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

Daytime cumulus will continue this afternoon, with deeper
structures supporting a brief shower or rumble of thunder. These
seem most likely across interior and mountain areas through
early evening before daytime heating subsides. Like last
evening, there is the chance for an isolated shower to continue
through the late evening and overnight hours, but these should
be few and far between.

Fog bank that had been in vicinity of the bays/harbors
yesterday and overnight has retreated 20 to 30 miles off the
coast. This should be a good buffer to keep prevent additional
widespread dense fog tonight. But, with little shift in
airmass, can`t rule out some fog development along the coast and
Midcoast later this evening and overnight.

Monday continues warmer, but a drier atmospheric column should
keep showers at bay. Temperatures climb into the mid to upper
80s outside of the mountains, but an afternoon sea breeze should
offer some relief along the coast.

KEY MESSAGE 2 DESCRIPTION...

The warming trend continues on Tuesday with widespread highs in
the 80s across the interior. Along the coast, onshore flow
likely keeps highs mainly in the 70s for one more day.

By Wednesday, the significant heat likely arrives into at least
New Hampshire and western Maine as highs warm into the 90s.
What makes this heat event notable is just how much moisture
will accompany the heat. Dew points likely push into the low to
mid 70s on Wednesday, pushing heat indices into the triple
digits where temps reach the 90s. These high dew points continue
through at least Friday.

One possible limiting factor for the heat remains the potential
for rounds of convection originating near the Great Lakes, and
riding around the ridge into New England. Should these arrive
during the midday timeframe, they would serve to limit the
heating potential. But arriving at any other time of the day,
they will likely only serve to increase dew points. We`ll likely
have to wait until Tuesday to have a better handle on how these
will effect temperatures in the Wednesday through Friday time
frames, as the differences will be localized and variable.

Outside of any convection, the heat looks most likely to peak
on Thursday and Friday. Modeled 850mb temps of 22-24C support
the potential for near record high temps of 97-102 degrees,
barring any hinderance from convection or sea breezes. It would
be a misuse of time to tinker with which side of 100
temperatures will reach in the Thursday and Friday timeframe at
this point in time. The main message remains that heat and
humidity hazardous to health is increasingly likely as heat
indices push 110 degrees by Thursday.

Additionally, the trend over the last few model runs has been
for an increasing chance of the heat to continue into at least
Friday of Saturday. The models first trended warmer for
Wednesday and Thursday over the last few days, and now look to
be trending this way for Friday and Saturday as well. We will
continue to watch the progression of this, with a trough and
cooler conditions situated just to our east across Atlantic
Canada.

Across the Northeast US as a whole, this heat wave is shaping
up to look similar to some of the more notable events from
history, such as the 1911 and 1966 heat waves. For northern New
England, there remains some uncertainty on how high temps will
climb with convection and potential sea breezes offering
opportunities for some relief. But record breaking or not it`s
going to be hot, and individuals sensitive to heat and those
working or playing in the heat should take precautions to limit
exposure to it mid to late this week.

&&

.AVIATION /00Z MONDAY THROUGH FRIDAY/...
Through 00z Tuesday...Mostly VFR expected except for valley
locations that see another night of FG w/ LIFR vis/cig. Fog
shouldn`t be as widespread along the ME/NH coast tonight, but
can`t rule out dips to 3 or 4SM with 1SM towards RKD. Rainfall
that occurred at AUG this evening will also bring potential for
fog tonight. VFR expected through the day Monday.

Outlook:

Monday Night: Chance for the return of fog along the coast
hinges on how robust it is over the coastal waters through
Monday. It is likely this does not return until after 00z.

Tuesday - Friday: Mainly VFR prevails at most terminals, but rounds
of showers and storms will be possible each day. Marine fog will be
possible at RKD.

&&

.MARINE...
Marine stratus or fog seems likely to remain around the coastal
waters for much of the coming week in between systems.

High pressure gradually settles south of the waters by midweek.
Mainly fair conditions prevail, but some seas to near 5ft are
possible Tuesday night in southwesterly flow.

&&

.CLIMATE...
High temperature records at long term climate sites...

 July   1st   2nd   3rd

 AUG    92    93     94

 PWM    93    98     95

 CON    99    98    102

&&

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

&&

$$

DISCUSSION...Clair/Cornwell/Schroeter