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Bethel, Connecticut 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Bethel CT
National Weather Service Forecast for: Bethel CT
Issued by: National Weather Service New York, NY
Updated: 3:38 pm EDT Mar 30, 2025
 
Tonight

Tonight: A 30 percent chance of showers, mainly between 8pm and 2am.  Areas of fog after 11pm.  Otherwise, cloudy, with a temperature rising to around 49 by 5am. East wind 3 to 6 mph.
Chance
Showers and
Areas Fog

Monday

Monday: A chance of showers, then showers likely and possibly a thunderstorm after 5pm.  Patchy fog before 11am.  Otherwise, cloudy, with a high near 65. South wind 9 to 11 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
Showers and
Patchy Fog
then Showers
Likely
Monday
Night
Monday Night: Showers and possibly a thunderstorm.  Low around 39. South wind 7 to 11 mph becoming northwest after midnight.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Showers


Tuesday

Tuesday: A 30 percent chance of showers before 8am.  Mostly cloudy, then gradually becoming sunny, with a high near 52. Northwest wind around 15 mph, with gusts as high as 25 mph.
Chance
Showers then
Sunny

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 29. North wind around 7 mph.
Mostly Clear


Wednesday

Wednesday: Mostly sunny, with a high near 47.
Mostly Sunny


Wednesday
Night
Wednesday Night: A 50 percent chance of showers.  Cloudy, with a low around 38.
Chance
Showers

Thursday

Thursday: A 40 percent chance of showers.  Mostly cloudy, with a high near 69.
Chance
Showers

Thursday
Night
Thursday Night: Showers likely, mainly after 2am.  Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Showers
Likely

Lo 44 °F Hi 65 °F Lo 39 °F Hi 52 °F Lo 29 °F Hi 47 °F Lo 38 °F Hi 69 °F Lo 54 °F

 

Tonight
 
A 30 percent chance of showers, mainly between 8pm and 2am. Areas of fog after 11pm. Otherwise, cloudy, with a temperature rising to around 49 by 5am. East wind 3 to 6 mph.
Monday
 
A chance of showers, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 65. South wind 9 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
 
Showers and possibly a thunderstorm. Low around 39. South wind 7 to 11 mph becoming northwest after midnight. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
 
A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 52. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
 
Mostly clear, with a low around 29. North wind around 7 mph.
Wednesday
 
Mostly sunny, with a high near 47.
Wednesday Night
 
A 50 percent chance of showers. Cloudy, with a low around 38.
Thursday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Thursday Night
 
Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Friday
 
Showers likely, mainly before 8am. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Friday Night
 
Mostly cloudy, with a low around 41.
Saturday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 54.
Saturday Night
 
A 40 percent chance of showers. Mostly cloudy, with a low around 39.
Sunday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 53.

 

Forecast from NOAA-NWS for Bethel CT.

Weather Forecast Discussion
556
FXUS61 KOKX 302008
AFDOKX

Area Forecast Discussion
National Weather Service New York NY
408 PM EDT Sun Mar 30 2025

.SYNOPSIS...
A stationary boundary nearby and over the region tonight will lift
north as a warm front early on Monday. Low pressure consolidates
just north of the Canadian border during Monday and drags a pair of
cold fronts through Monday night and Tuesday morning. High pressure
builds in through Wednesday, then a frontal system quickly works
into the region on Thursday, potentially stalling near the area
through the weekend.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
With a low level boundary (stationary front) locked down to the
south of the Del Marva and Southern New Jersey, our sfc winds should
continue to provide mainly an E to ESE flow through the evening.
Later tonight more of a true SE wind sets up as the sfc winds begin
to veer. A complex frontal system with elongated low pressure over
the Northern Great Lakes begins to consolidate some with an upper
level jet streak working into the Ohio Valley. This should cause
some height amplification downstream into our region and into the
Western Atlantic tonight into Monday morning. In response to this a
LLJ begins to ramp up, especially across eastern portions of the
area. The 925 mb warm front lifts north tonight while BUFKIT fx
soundings continue to show a strong low level inversion just ahead
and along the sfc warm front. Getting closer to daybreak guidance
eventually begins to lift the warm front into southern portions of
the CWA. With the lower level inversion in place really not expected
stronger winds aloft to mix down to the sfc. Since the region will
be just ahead of the returning boundary / warm front tonight the
region will remain socked in with low clouds and areas of fog will
be a concern. Questions remain with low level wind speeds,
especially closer to the coast. Thus there remains some uncertainty
with how dense the fog will become. The overall expectation is for
mainly 1 mi vsby, or perhaps less across a good portion of the
area.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH TUESDAY/...
The warm front lifts north during the morning. The cloud deck
overall should gradually lift some, with cloudy skies remaining with
a strong warm advection pattern ensuing. Some guidance is suggesting
that fog may attempt to stick around a little longer than
anticipated for Monday morning. A difficult call since this time of
year regarding the warm sector as it can get rather complicated with
advection off the colder ocean. A strong synoptic gradient will be
in place with a S to SSW flow regime, thus overall expecting the
lowest clouds to break and dissipate. A few showers from time to
time are on the table through the early afternoon, but it may
actually not be raining much of the time. Most of the forcing will
reside west of the area through a good portion of the day. It really
shouldn`t be until later in the afternoon that showers should become
more widespread with scattered shower activity beginning to fill in
with higher moisture values and higher PWATs advecting in. By late
in the day and evening PWAT values begin to climb into the 1.25 to
1.50 inch range. SPC has placed far western portions of the area in
a Slight Risk of severe weather, with a marginal risk into the NYC
metro. With the forcing ramping up CAM guidance indicates a
potential squall line by early evening for the western part of the
area which would likely weaken as it encounters maritime dominated
air as it gets further east. Despite overall CAPE being limited,
some stronger wind gusts cannot be ruled out (especially west of the
NYC metro) with any convection that can get going for the evening.
Overall, the convection should allow some embedded heavier shower
activity to pivot through the region. With the southerly flow off
the ocean for the eastern 2/3rds of the CWA, it may be difficult to
get stronger gusts down to the surface with what is left of any low
level inversion and the maritime influence. Rainfall totals should
be in the 0.7 to 1.4 inch range across the area with WPC maintaining
a Marginal Risk of excessive rainfall. See the hydrology section for
further details.

The shower activity and any convection will get further east by the
late evening and overnight as the cold front begins to pivot into
and through the area. The winds immediately behind the boundary will
switch to the NW. This should take place for the NYC metro towards
or shortly after midnight. The NW flow picks up into the Tuesday AM
commute as a secondary cold front pivots through early.

Low pressure exits further off the NE coast as high pressure builds
on Tuesday. A N to NNW flow regime ushers in drier air. A seasonable
day temperature wise with mainly middle 50s as full sunshine
develops. Chose to stick close to NBM guidance temp wise as the flow
will be more northerly as opposed to westerly, thus temperatures
should not get too much above guidance with less overall adiabatic
compression / warming.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
Dry wx Tue ngt thru the day on Wed with high pres building in. Temps
Tue ngt still on track for 20s and 30s, although the NBM has trended
up slightly for cstl areas, likely due to nly flow thru the ngt
minimizing the radiational cooling potential.

Increasing clouds Wed with a warm front approaching. Chances for
shwrs Wed ngt as the theta-e ridge builds in. There could be some
fog and dz as well, but kept out for now in case the front stalls S
of the area before jumping nwd Thu mrng.

Warm sectored on Thu, with areas W of the Hudson the warmest,
possibly 20 degrees or so warmer than Montauk. Went with the blended
approach for rain chances per the NBM, but these numbers may end up
a bit high if the cdfnt remains too far W as the 12Z GFS suggests.

As the main upr lvl energy with the sys ejects into Canada, the
residual boundary looks to meander over the area right thru the
weekend, at times S of the area, at times over the area. The fcst is
NBM pops meaning chances for shwrs thru the period. The 12Z ECMWF
and GFS suggest this pattern wipes out around next Mon with a strong
upr low dropping down out of Canada.

&&

.AVIATION /20Z SUNDAY THROUGH FRIDAY/...
A warm front slowly approaches from the south this evening,
lifting through the area overnight. A cold front approaches on
Monday, passing though at night.

Expect mainly IFR to LIFR conditions through tonight. There is
a chance for some brief improvement to MVFR this afternoon,
mainly in and around the NYC terminals. The better chance for
improvement will come late Monday morning and afternoon in the
warm sector ahead of the cold front, especially for the NYC and
Lower Hudson Valley terminals.

Fog becoming likely tonight as the warm front moves into the
area. Visibilities lowering to IFR and locally LIFR/VLIFR.

East winds 5 to 10 kts will gradually veer overnight, becoming
SSW toward daybreak Monday with wind speeds around 10-12 kt.
Warm front looks to be a bit earlier at some of the eastern
terminals, in particular at KISP, which will be around 06Z.
S-SW gusts 20-25kt develop late Monday morning into early
afternoon. Chance of LLWS at coastal terminals early Monday
with SW winds 40-50 kt at 2kft.

 ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...

Ceilings could fluctuate between MVFR and IFR this afternoon.

Amendments likely for timing of category changes tonight into
Monday.

VLIFR possible tonight.

.OUTLOOK FOR 18Z MONDAY THROUGH FRIDAY...

Monday Afternoon: NYC and Lower Hudson Valley terminals improve
to MVFR, possibly VFR. JFK could remain IFR or lower. Otherwise,
a chance of MVFR or lower in showers, possibly a thunderstorm.
Eastern terminals will likely remain IFR or lower. S-SW wind
gusts 20-25 kt.

Monday night: Showers. Possible thunderstorms. Mainly MVFR for
the NYC terminals, IFR/LIFR at the eastern terminals, possibly
JFK as well. Improving to VFR following cold frontal passage.
SW wind gusts near 20 kt, eventually becoming NW wind gusts
near 20 kt late.

Tuesday: VFR. NW wind gusts 20-25 kt during the day.

Wednesday: MVFR or lower possible at night with a chance of rain
showers. SE wind gusts 15-20 kt.

Thursday: MVFR or lower possible with a chance of rain showers.
SW wind gusts 15-25 kt, highest along the cost.

Friday: VFR.

Detailed information, including hourly TAF wind component
forecasts, can be found at: https:/www.weather.gov/zny/n90

&&

.MARINE...
A marine dense fog advisory is in effect for tonight into Monday
morning for reduces visibilities in areas of fog.

Sub advisory conditions through this evening with ocean seas around
4 ft.  A southerly flow picks up during the overnight out on the
ocean as seas begin to climb resulting in small craft conditions
developing, with far eastern LI Sound approaching small craft
conditions towards day break.  The non-ocean waters then go to small
craft by mid to late morning on Monday. Other than a brief lull in
conditions with a wind switch from S-SW to NW Monday night, small
craft conditions resume by Tuesday morning on a NW wind. Small craft
gusts to around 25 kt will take shape on all waters on Tuesday,
along with elevated seas out on the ocean.

Small craft conditions may linger for the majority of the time on
the ocean Tue ngt thru Fri. Elsewhere, SCA winds possible Wed ngt
and Thu behind a warm frontal passage.

&&

.HYDROLOGY...
WPC has placed the region in a marginal risk of excessive rainfall
on Monday (mainly for rain that would fall in association with
embedded convective elements late Monday and Monday night). At this
time only some localized minor nuisance / poor drainage urban type
flooding is anticipated in association with a potential line of
heavier shower activity mainly during the first half of Monday
night. The overall thinking at this time points to a shorter
duration of heavier rain in association with moderate rainfall
rates, which should preclude any consequential flooding.

No hydrologic impacts are expected for the remainder of the period,
Tue-Sun.

&&

.TIDES/COASTAL FLOODING...
Astronomical levels are high with recent new moon. This combined
with continuous easterly flow has built up water levels. Minor
coastal flooding will be easy to achieve in some areas tonight
around times of high tide.

More sites are forecast to reach minor coastal flood benchmarks
for tonight around times of high tide. This expands beyond the
shorelines of Fairfield CT to also include some other adjacent
shoreline areas along the western Sound as well as the Long
Island South Shore Bays and the Lower NY Harbor. This is where
widespread minor coastal flooding is expected. Most other
shorelines are expected to have isolated minor coastal flooding.

Widespread minor coastal flooding is where advisories have been
issued and the more isolated coastal flooding is where
statements have been issued.

Additional minor coastal flooding is possible around the times
of high tide Monday night.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Coastal Flood Advisory from 11 PM this evening to 3 AM EDT
     Monday for CTZ009.
NY...Coastal Flood Advisory from 11 PM this evening to 3 AM EDT
     Monday for NYZ071.
     Coastal Flood Advisory until 1 AM EDT Monday for NYZ074-075-
     178-179.
NJ...None.
MARINE...Dense Fog Advisory until 11 AM EDT Monday for ANZ331-332-335-
     338-340-345-350-353-355.
     Small Craft Advisory from 9 AM Monday to 6 AM EDT Tuesday for
     ANZ331-335-338-340-345.
     Small Craft Advisory from 6 AM Monday to 6 AM EDT Tuesday for
     ANZ332.
     Small Craft Advisory from midnight tonight to 6 AM EDT Tuesday
     for ANZ350-353-355.

&&

$$

SYNOPSIS...JMC/JE
NEAR TERM...JE
SHORT TERM...JE
LONG TERM...JMC
AVIATION...DW
MARINE...JMC/JE
HYDROLOGY...JMC/JE
TIDES/COASTAL FLOODING...
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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