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Hermon, Maine 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Hermon ME
National Weather Service Forecast for: Hermon ME
Issued by: National Weather Service Caribou, ME
Updated: 6:13 pm EDT Jun 6, 2025
 
Tonight

Tonight: Showers and thunderstorms before 1am, then scattered showers between 1am and 2am, then showers likely and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall.  Widespread haze. Low around 61. Light south wind.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Heavy Rain
then Showers
Likely
Saturday

Saturday: Showers likely and possibly a thunderstorm.  Widespread haze. Cloudy, with a high near 66. South wind 3 to 6 mph.  Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Showers
Likely
Saturday
Night
Saturday Night: A chance of showers, mainly before midnight.  Widespread haze before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 55. Calm wind becoming north around 6 mph after midnight.  Chance of precipitation is 40%.
Chance
Showers
Sunday

Sunday: Sunny, with a high near 76. North wind around 7 mph.
Sunny

Sunday
Night
Sunday Night: Mostly cloudy, with a low around 52. Southeast wind around 5 mph becoming calm  in the evening.
Mostly Cloudy

Monday

Monday: A chance of showers, mainly after 10am.  Partly sunny, with a high near 69. Southeast wind 6 to 9 mph.  Chance of precipitation is 30%.
Chance
Showers
Monday
Night
Monday Night: A chance of showers, mainly before 9pm.  Mostly cloudy, with a low around 52. Southeast wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 30%.
Chance
Showers
Tuesday

Tuesday: A chance of showers, mainly after 4pm.  Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
Mostly Cloudy
then Chance
Showers
Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms, then showers likely after 10pm.  Cloudy, with a low around 56. Chance of precipitation is 70%.
Showers
Likely
Lo 61 °F Hi 66 °F Lo 55 °F Hi 76 °F Lo 52 °F Hi 69 °F Lo 52 °F Hi 69 °F Lo 56 °F

 

Tonight
 
Showers and thunderstorms before 1am, then scattered showers between 1am and 2am, then showers likely and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Widespread haze. Low around 61. Light south wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
 
Showers likely and possibly a thunderstorm. Widespread haze. Cloudy, with a high near 66. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
 
A chance of showers, mainly before midnight. Widespread haze before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 55. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 40%.
Sunday
 
Sunny, with a high near 76. North wind around 7 mph.
Sunday Night
 
Mostly cloudy, with a low around 52. Southeast wind around 5 mph becoming calm in the evening.
Monday
 
A chance of showers, mainly after 10am. Partly sunny, with a high near 69. Southeast wind 6 to 9 mph. Chance of precipitation is 30%.
Monday Night
 
A chance of showers, mainly before 9pm. Mostly cloudy, with a low around 52. Southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
 
A chance of showers, mainly after 4pm. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
Tuesday Night
 
A chance of showers and thunderstorms, then showers likely after 10pm. Cloudy, with a low around 56. Chance of precipitation is 70%.
Wednesday
 
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Wednesday Night
 
Mostly clear, with a low around 56.
Thursday
 
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
Thursday Night
 
Partly cloudy, with a low around 57.
Friday
 
Mostly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Hermon ME.

Weather Forecast Discussion
400
FXUS61 KCAR 062223
AFDCAR

Area Forecast Discussion
National Weather Service Caribou ME
623 PM EDT Fri Jun 6 2025

.SYNOPSIS...
A front will remain stalled across the Gulf of Maine this
afternoon and tonight. Low pressure will approach tonight and
track across the area Saturday. High pressure will return on
Sunday. An upper level low will set up west of the area Monday
through the middle of next week.

&&

.NEAR TERM /THROUGH SATURDAY/...
Update..
No significant changes to the going forecast as it continues in
fine shape at this hour. Very hazy conditions continue across
the region early this evening. Visibilities at the northern
airfields ranging from 4 to 6 statute miles. Latest radar
reflectivity imagery shows showers beginning to move toward the
Grenville/Dover Foxcroft region and the Bangor. Only change was
to tweak hourly temps/dew points.

previous discussion
Today, low pressure system pauses and goes stationary over
Maine, leading to relatively light and calm winds. Primary
concerns this evening have been the Canadian smoke causing some
hazy conditions throughout Maine today, due to the lack winds.
The smoke is currently forecast to stay around until tomorrow
night based on models and current conditions. Generally,
northern Maine is in the Unhealthy for Sensitive Grounds range,
but could concentrations could increase if smoke begins to
accumulate throughout the area. The smoke has reduced
visibility in some northern locations. Smoke could get better in
southern areas tomorrow, but could definitely linger in the
north overnight. High level clouds move over the north and some
thicker high level clouds move through the coast. Rain showers
push in with the stalled front, focused primarily in southern
and coastal areas.

Late tonight, brief break between rain showers, before coming
back during the day tomorrow. Rain looks to be mostly centered
around southern and central Maine, but confidence is pretty low
over whether these showers will extend into northern counties.
If showers do extend more north, looks to be mostly light.
Could be a slight potential for some isolated thunder based on
soundings and instability parameters, primarily focused in
central and coastal Maine. General rainfall accumulations
between tonight and tomorrow are around half an inch in the
north, and potentially between an inch to an inch and a half in
the Central Highlands and Downeast region. Overnight lows in the
high-50s/low-60s. Daytime highs tomorrow in the in the
upper-60s, and 50s along the coastline with the southerly sea
breeze. Overcast skies tonight into tomorrow.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
Saturday Night...
Low pressure and rain exits from west to east in the evening,
and a drier airmass works in. Still could be some smoke around.
Low confidence on when exactly it exits.

Sunday...
High pressure builds in, making for a dry day to close out the
weekend. Mostly sunny skies and fairly light winds.

Sunday Night and Monday...
High pressure moves east and clouds and precip chances begin
increasing from west to east. Model agreement falls off
especially toward late Monday, with a few ensemble members,
especially from the ECMWF, showing decent rain Monday afternoon.
More models/ensembles, however, favor dry weather. Going with
around a 30 percent chance of showers for now, close to the NBM.
Seasonal temperatures persist into Monday.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
From Tuesday through Friday, westerly flow aloft over the
region, with perhaps several shortwave troughs embedded in the
westerly flow bringing increased precip chances. The first
shortwave trough appears likely for late Tuesday/Tuesday night,
with likely showers and possible thunderstorms. Timing still a
bit uncertain for this feature, but models overall are in
reasonable agreement. After Tuesday night, however,
model/ensemble timing becomes more uncertain. Generally, looking
for a gradual transition from W/SW flow to NW flow as we head
toward Friday, with perhaps a drying trend toward Friday.
Thunderstorm chances exist Wed/Thu, especially in the afternoon
hours. Temperatures Tuesday through Friday running near or a bit
above average, with slightly muggy conditions but nothing too
bad. With the westerly flow and fires persisting to our west in
Canada, we could still be susceptible to smoke advecting into
the region.

&&

.AVIATION /22Z FRIDAY THROUGH WEDNESDAY/...
NEAR TERM:
KFVE/KCAR/KPQI/KHUL: VFR conditions are expected today into this
evening. Periods of MVFR this afternoon due to hazy conditions
reducing visibilities. MVFR ceilings move through very early
tomorrow morning, but should lift during the daytime hours.
Potential for some showers to move through the north tomorrow
morning. Winds variable to lightly NE today, before becoming SE
tomorrow.

KBGR/KBHB: VFR conditions are expected this evening into
tonight. Potential for some periods of MVFR this afternoon due
to hazy conditions reducing visibilities. MVFR/IFR ceilings move
through late tonight into tomorrow as rain showers begin to
move through this evening. Some fog potential early tomorrow
morning which would reduce visibility. Winds variable to lightly
S today, before becoming SW tomorrow.


SHORT TERM:

Saturday Night...MVFR/IFR early with SHRA, improving to VFR
late. NW winds 5-10 kts.

Sunday...VFR. NW winds 5-10 kts, gusting 15-20 kts.

Sunday Night-Monday...Mainly VFR, but a small possibility of
MVFR/IFR Monday afternoon if wetter model solutions transpire.
Light winds Sunday night, becoming SE 5-10 kts on Monday.

Monday night...Generally VFR but with a small chance of MVFR.
Light winds.

Tuesday...VFR generally early, perhaps becoming MVFR late. S
winds 5-10 kts.

Tuesday Night and Wednesday...MVFR/IFR likely Tuesday  night,
improving to VFR/MVFR by Wednesday afternoon. Showers and
thunderstorm possible. S winds 5-15 kts becoming W.

&&

.MARINE...
NEAR TERM: Winds and seas stay below Small Craft Advisory
criteria tonight into tomorrow. Seas at or below 4 ft over the
outer waters and at or below 3ft for the intra-coastals.
Tomorrow afternoon, there is a potential for a period of 5 ft
seas on the far outer waters. Haze from Canadian wildfires have
been seen making it out over the waters, which could reduce
visibility. Fog possible tonight into tomorrow morning. Rain
showers with some isolated thunderstorms possible tonight into
tomorrow. Winds relatively light and variable before becoming
steadily southerly tomorrow.

SHORT TERM: Winds generally below small craft levels through
the forecast period. Wave heights could approach borderline
small craft levels (5 feet) Sunday and again Tuesday/Wednesday.

&&

.CAR WATCHES/WARNINGS/ADVISORIES...
ME...Air Quality Alert until 11 PM EDT Saturday for MEZ001>006-010-
     011-031-032.
MARINE...None.

&&

$$


Near Term...Brennan/TWD
Short Term...Foisy
Long Term...Foisy
Aviation...Brennan/TWD/Foisy
Marine...Brennan/TWD/Foisy
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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