Bangor, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

376
FXUS61 KCAR 101023
AFDCAR

Area Forecast Discussion
National Weather Service Caribou ME
623 AM EDT Sun Aug 10 2025

.SYNOPSIS...
High pressure centered east of NewFoundland will ridge back
across the Gulf of Maine into early next week. A cold front
will approach from the northwest on Wednesday and move through
the area on Thursday.

&&

.NEAR TERM /THROUGH MONDAY/...
625 am update...
Updated forecast to remove fog over the coast this morning as it
hasn`t really materialized, other than in very isolated
locations. No other chgs with this update.

Prev discussion blo...
Ridge of hipres remains over the Gulf of Maine with swrly flow
continuing acrs the area. Expect similar conditions today with
little change in airmass. Slight chc for showers and storms fcst
to dvlp to the north of the sea breeze boundary with diurnal
htg. Temperatures overperformed yesterday under hazy skies and
expect most inland locations will approach 90 this afternoon.
This looks to be the start of a heatwave that will continue
through the short term. Heatwave is defined as 3 days or more of
high temperatures >= 90 degrees.

Convection will diminish this evening with clear-mostly clear
skies expected with mins only dropping into the lower-middle
60s. Marine layer might try to make another run at the coast
late tonight and have brought patchy fog along the coast after
06z.

Fog likely to diminish after sunrise with upper ridge parked
over the CWA. Sunny skies and warming temps will push most
inland areas over the 90 degree mark. Heat indices will approach
heat advisory criteria of >95F with dwpts progged to be in the
l/m 60s. Will allow day shift one more look to account for any
mixing that may result in lwr dewpoints before issuing any heat
headlines that may be needed.

&&

.SHORT TERM /MONDAY NIGHT THROUGH TUESDAY NIGHT/...
Upper ridging remains in place Monday night with continued muggy
conditions. Lows will range from the mid to upper 60s for much of
the region. Light southerly flow will keep lows a bit cooler along
the coast along with patchy to areas of fog expected near the
coast.

Upper level ridge begins to weaken somewhat on Tuesday but it will
be another hot and humid day. Afternoon highs away from the coast
will climb into the lower 90s in most areas. Heat advisories may be
needed once again as apparent temperatures will approach the
mid to upper 90s in some areas. Mainly clear skies and continued
muggy conditions are expected Tuesday night with lows mainly in
the 60s.

&&

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
The upper ridge continues to break down by Wednesday in response to
an approaching upstream trough and surface cold front. Afternoon
highs may be a couple degrees cooler than Tuesday but it will still
be another very warm and muggy day. There are still timing
differences amongst the deterministic model guidance with regard to
the speed of the frontal passage. But would expect the chance for
showers and thunderstorms by afternoon. The strength of any
potential convection is still highly uncertain this far out. The
chance for showers and thunderstorms will continue into
Wednesday evening, with the chance for showers right into
Thursday as an upper trough and secondary front crosses the
region.

A cooler and drier airmass can be expected for Thursday night
through early next weekend. Afternoon highs on Wednesday will be
several degrees above normal and then just a bit above normal
Thursday. Near normal temperatures for this time of year are
expected by Friday and Saturday.

&&

.AVIATION /10Z SUNDAY THROUGH THURSDAY/...
NEAR TERM: Mainly VFR next 24 hours. Cannot rule out a stray
shower affecting Aroostook terminals this afternoon but did not
include at this time.

Better chance exists for IFR vsby reductions at BHB late
tonight. VFR at all terminals on Monday.

SHORT TERM:

Mon night...VFR, except MVFR/IFR possible in fog KBHB.

Tue and Tue night...VFR, except MVFR/IFR possible in any early
morning fog vicinity KBHB.

Wed and Wed night...VFR but MVFR possible in any scattered
showers and late afternoon/evening thunderstorms.

Thu...VFR but MVFR possible in any showers. Gusty NW wind.

&&

.MARINE...
NEAR TERM: No headlines expected through Monday with seas around
1 foot on the intracoastal zone and 1-3 feet over the outer
waters. Patchy fog may reduce visibilities over the waters
tonight.

SHORT TERM: Winds/seas will be below SCA levels through the
period. Fog may reduce visibilities in the waters to around 1 NM
Monday night into Tuesday morning.

&&

.CLIMATE...
Record high temperatures are possible in some locations both
Monday and Tuesday.

Records Highs for Monday Aug 11:

Caribou: 92 in 2020
Houlton: 91 in 2020
Millinocket: 96 in 1944
Bangor: 99 in 1944

Record Highs for Tuesday Aug 12:

Caribou: 93 in 1944
Houlton: 92 in 2020
Millinocket: 94 in 1944
Bangor: 100 in 1944

&&

.CAR WATCHES/WARNINGS/ADVISORIES...
ME...Beach Hazards Statement through this evening for MEZ029-030.
MARINE...None.

&&

$$


Near Term...Buster
Short Term...TWD
Long Term...TWD
Aviation...Buster/TWD
Marine...Buster/TWD
Climate...Buster