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Brentwood, New York 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Brentwood NY
National Weather Service Forecast for: Brentwood NY
Issued by: National Weather Service New York, NY
Updated: 7:13 pm EDT Aug 11, 2025
 
Overnight

Overnight: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 66. Southwest wind around 6 mph.
Patchy Fog

Tuesday

Tuesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 86. Light southwest wind becoming south 5 to 10 mph in the morning.
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 70. South wind 6 to 9 mph.
Mostly Clear
then Patchy
Fog
Wednesday

Wednesday: A chance of showers, with thunderstorms also possible after 5pm.  Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 86. South wind 5 to 11 mph.  Chance of precipitation is 30%.
Chance
Showers and
Patchy Fog
Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Southwest wind 5 to 8 mph.  Chance of precipitation is 40%.
Chance
Showers
Thursday

Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm.  Partly sunny, with a high near 89. Chance of precipitation is 30%.
Chance
T-storms
Thursday
Night
Thursday Night: Partly cloudy, with a low around 69.
Partly Cloudy

Friday

Friday: Sunny, with a high near 87.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 68.
Mostly Clear

Lo 66 °F Hi 86 °F Lo 70 °F Hi 86 °F Lo 71 °F Hi 89 °F Lo 69 °F Hi 87 °F Lo 68 °F

 

Overnight
 
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 66. Southwest wind around 6 mph.
Tuesday
 
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Light southwest wind becoming south 5 to 10 mph in the morning.
Tuesday Night
 
Patchy fog after 2am. Otherwise, mostly clear, with a low around 70. South wind 6 to 9 mph.
Wednesday
 
A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. South wind 5 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.
Thursday
 
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm. Partly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
 
Partly cloudy, with a low around 69.
Friday
 
Sunny, with a high near 87.
Friday Night
 
Mostly clear, with a low around 68.
Saturday
 
Sunny, with a high near 85.
Saturday Night
 
Mostly clear, with a low around 69.
Sunday
 
Sunny, with a high near 88.
Sunday Night
 
Partly cloudy, with a low around 71.
Monday
 
Mostly sunny, with a high near 85.

 

Forecast from NOAA-NWS for Brentwood NY.

Weather Forecast Discussion
960
FXUS61 KOKX 120237
AFDOKX

Area Forecast Discussion
National Weather Service New York NY
1037 PM EDT Mon Aug 11 2025

.SYNOPSIS...
High pressure remains centered just offshore in the Western Atlantic
early this week. A cold front gradually approaches on Wednesday and
moves through sometime Wednesday night into Thursday morning.
High pressure briefly returns Friday into Saturday before another
cold front passes through Sunday into Monday.

&&

.NEAR TERM /THROUGH TUESDAY/...
The area remains under mid-level ridging with a surface high
pressure positioned to the southeast of the area off of the Mid-
Atlantic coast.

This high pressure will allow dry and generally clear conditions to
persist over the next 36-48 hours. Clear skies tonight with a
lessening wind should allow some interior spots to radiationally
cool into the low to middle 60s, assuming the light SW flow
becomes calm. Temperatures along the coast may remain in the
upper 60s to near 70. Given the amount of cooling expected
tonight, the development of patchy fog is possible, especially
for the extreme NW portions of the area where valley fog may
form and the eastern coastal areas where low stratus may form.

&&

.SHORT TERM /TUESDAY NIGHT/...
High pressure remains in control through Tuesday with once again
mostly sunny skies expected outside of any morning fog or low
stratus. Temperatures are expected to rise into the middle to upper
80s for much of the area with some warmer spots rising into the low
90s.

An increasing S/SW flow into the afternoon will allow for a
subtle increase in dew points which will make for a more muggy
feel to the air than much of the last week. The additional
moisture will also make the heat index values rise into the low
90s for much of the area. Low temperatures Tuesday night into
Wednesday morning will be slightly warmer than previous nights
with lows in the upper 60s to low 70s. More widespread fog or
low stratus will be possible as well once again.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
High pressure well offshore continues to push east and weaken as a
slow moving cold front gradually approaches from the northwest on
Wednesday. The S/SW flow out ahead of the front will bring an
increase in heat and moisture to the area. The NBM was followed for
temperatures, but blended in some drier dewpoints to account for
some daytime mixing. This combination resulted in widespread 95 to
99 degree Heat Index values everywhere except eastern Long Island
and eastern CT. As of right now these Heat Index values are only
widespread for 1 day, so Heat Advisory criteria is not being met.
While some northeast NJ, NYC and Long Island locations will see 95
to 96 degree Heat Index values again on Thursday, conditions are too
marginal and confidence is too low to issue any Advisory at this
time.

With the cold front/pre-frontal trough moving into the hot and humid
airmass, there is a threat for showers and thunderstorms, mainly
Wednesday afternoon into Thursday morning. As of right now severe
thunderstorms are not expected. While instability is decent (upwards
of 2000 J/kg of MLCAPE), shear appears to be weak (mainly below 20kt
0-6km bulk shear) along with lack of mid and upper level forcing.
However, it is worth noting that the CSU MLP has western portions of
the area in a 15 to 30% risk of damaging winds.

Behind the cold front we dry out as brief high pressure builds in.
Dry conditions likely continue through Sunday before another cold
front brings chances for showers and thunderstorms. Also expect a
gradual warm up through Sunday, with Heat Index values back at 95 to
99 on Sunday.

&&

.AVIATION /03Z TUESDAY THROUGH SATURDAY/...
Mainly VFR with high pressure in control. Low chc for some
patchy MVFR CIGS aft 3Z Wed. Prob too low so VFR in the TAFs
attm.

Light SW or variable winds overnight. Winds again become S-SW
around or just over 10 kt Tue afternoon, before decreasing again
in the eve.

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

No unscheduled AMD expected.

.OUTLOOK FOR 00Z WEDNESDAY THROUGH FRIDAY...

Tuesday night: VFR.

Wednesday: Chance of late day/evening showers/tstms with MVFR or
lower cond. Chance of showers late at night.

Thursday: Mainly VFR. Chance of showers and possibly a thunderstorm.

Thursday night through Saturday: VFR.

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

&&

.MARINE...
With a weak pressure gradient in place, winds and seas are expected
to remain below Small Craft Advisory (SCA) criteria through the
week.

&&

.HYDROLOGY...
There are no significant hydrological concerns through the week.

&&

.TIDES/COASTAL FLOODING...
A moderate rip current risk is in place today and Tuesday along
ocean beaches due to persistent E-ESE swells with around 3 ft waves
and a 7 to 9 second period.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Air Quality Alert until 11 PM EDT this evening for CTZ005>012.
NY...Air Quality Alert until 11 PM EDT this evening for NYZ067>075-
     078>081-176>179.
NJ...Air Quality Alert until 11 PM EDT this evening for NJZ002-004-
     006-103>108.
MARINE...None.

&&

$$

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






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