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Now · 11:07 AM

Brentwood Weather & Hourly Forecast

United States · Pennsylvania · 15227

Light rain
76°F
Light rain
Feels like: 81°F
💧 Humidity 80% 🌡 Pressure 29.94 inHg 💨 Wind 4 mph 👁 Visibility 8.9 mi Clouds 47% ☀️ UV index 4.2 · Moderate 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Brentwood

Today
Mostly sunny · 12:00 PM Mostly sunny
78° 💧 0.00 in 💨 4 mph H 72%29.91 inHg
Light rain · 3:00 PM Light rain
75° 💧 0.05 in 💨 6 mph H 78%29.88 inHg
Mostly sunny · 6:00 PM Mostly sunny
79° 💧 0.00 in 💨 5 mph H 57%29.85 inHg
Clear night · 9:00 PM Clear night
71° 💧 None 💨 6 mph H 74%29.91 inHg
Tomorrow
Clear night · 12:00 AM Clear night
65° 💧 None 💨 6 mph H 80%29.94 inHg
Clear night · 3:00 AM Clear night
61° 💧 None 💨 5 mph H 88%29.97 inHg
Clear night · 6:00 AM Clear night
60° 💧 None 💨 6 mph H 90%29.97 inHg
Sunny · 9:00 AM Sunny
64° 💧 None 💨 5 mph H 82%30.03 inHg
Sunny · 12:00 PM Sunny
73° 💧 None 💨 6 mph H 60%30.03 inHg
Partly cloudy · 3:00 PM Partly cloudy
77° 💧 None 💨 7 mph H 49%30.00 inHg
Mostly sunny · 6:00 PM Mostly sunny
76° 💧 None 💨 5 mph H 51%30.00 inHg
Mostly clear night · 9:00 PM Mostly clear night
69° 💧 None 💨 5 mph H 69%30.03 inHg
Monday
Clear night · 12:00 AM Clear night
65° 💧 None 💨 7 mph H 77%30.09 inHg
Clear night · 3:00 AM Clear night
62° 💧 None 💨 7 mph H 83%30.12 inHg
Clear night · 6:00 AM Clear night
59° 💧 None 💨 4 mph H 89%30.15 inHg
Sunny · 9:00 AM Sunny
64° 💧 None 💨 3 mph H 79%30.18 inHg

In Brentwood and, more broadly, across the state of Pennsylvania: The rest of the day will see a mix of sun and clouds, with temperatures remaining mild, ranging from 67 to 74 degrees Fahrenheit. Light winds from the north, with maximum speeds around 9 mph, will occasionally gust up to 23 mph. No precipitation is expected, making for generally dry conditions throughout the afternoon. The weather will be comfortable, with a gentle breeze adding a touch of coolness to the mild temperatures. Overall, it should be a pleasant day with partly sunny skies and no need for rain gear.

15-Day Weather Outlook for Brentwood

TomorrowTomorrow Mostly sunny Mostly sunny 77°/59° 💧 None 💨 7 mph
Monday, Sep 7Mon Sep 7 Mostly sunny Mostly sunny 78°/59° 💧 None 💨 7 mph
Tuesday, Sep 8Tue Sep 8 Mostly sunny Mostly sunny 82°/61° 💧 0.07 in 💨 5 mph
Wednesday, Sep 9Wed Sep 9 Mostly cloudy Mostly cloudy 86°/65° 💧 0.00 in 💨 13 mph
Thursday, Sep 10Thu Sep 10 Moderate rain Moderate rain 78°/69° 💧 0.36 in 💨 11 mph
Friday, Sep 11Fri Sep 11 Mostly sunny Mostly sunny 69°/61° 💧 0.04 in 💨 6 mph
Saturday, Sep 12Sat Sep 12 Partly cloudy Partly cloudy 74°/56° 💧 None 💨 8 mph
Sunday, Sep 13Sun Sep 13 Mostly cloudy Mostly cloudy 76°/65° 💧 None 💨 10 mph
Monday, Sep 14Mon Sep 14 Light rain Light rain 88°/56° 💧 0.17 in 💨 12 mph
Tuesday, Sep 15Tue Sep 15 Mostly sunny Mostly sunny 71°/53° 💧 None 💨 8 mph
Wednesday, Sep 16Wed Sep 16 Mostly sunny Mostly sunny 72°/54° 💧 None 💨 3 mph
Thursday, Sep 17Thu Sep 17 Mostly sunny Mostly sunny 78°/60° 💧 None 💨 7 mph
Friday, Sep 18Fri Sep 18 Overcast Overcast 82°/66° 💧 0.00 in 💨 11 mph
Saturday, Sep 19Sat Sep 19 Mostly cloudy Mostly cloudy 79°/57° 💧 0.00 in 💨 10 mph
Sunday, Sep 20Sun Sep 20 Partly cloudy Partly cloudy 70°/66° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Brentwood

Vertical axis: °F · Color based on temperature
Mostly sunny at 12:00 PM
78° Today 12:00 PM
Overcast at 1:00 PM
80° 1:00 PM
Overcast at 2:00 PM
80° 2:00 PM
Light rain at 3:00 PM
75° 3:00 PM
Light rain at 4:00 PM
80° Today 4:00 PM
Light rain at 5:00 PM
79° 5:00 PM
Mostly sunny at 6:00 PM
79° 6:00 PM
Mostly sunny at 7:00 PM
76° 7:00 PM
Mostly clear night at 8:00 PM
73° Today 8:00 PM
Clear night at 9:00 PM
71° 9:00 PM
Clear night at 10:00 PM
69° 10:00 PM
Clear night at 11:00 PM
67° 11:00 PM
Clear night at 12:00 AM
65° Tomorrow 12:00 AM
Clear night at 1:00 AM
63° 1:00 AM
Clear night at 2:00 AM
62° 2:00 AM
Clear night at 3:00 AM
61° 3:00 AM
Clear night at 4:00 AM
61° Tomorrow 4:00 AM
Clear night at 5:00 AM
60° 5:00 AM
Clear night at 6:00 AM
60° 6:00 AM
Sunny at 7:00 AM
59° 7:00 AM
Sunny at 8:00 AM
61° Tomorrow 8:00 AM
Sunny at 9:00 AM
64° 9:00 AM
Sunny at 10:00 AM
67° 10:00 AM
Sunny at 11:00 AM
70° 11:00 AM
Sunny at 12:00 PM
73° Tomorrow 12:00 PM
Sunny at 1:00 PM
75° 1:00 PM
Partly cloudy at 2:00 PM
77° 2:00 PM
Partly cloudy at 3:00 PM
77° 3:00 PM
Mostly sunny at 4:00 PM
77° Tomorrow 4:00 PM
Mostly cloudy at 5:00 PM
77° 5:00 PM
Mostly sunny at 6:00 PM
76° 6:00 PM
Sunny at 7:00 PM
74° 7:00 PM
Clear night at 8:00 PM
71° Tomorrow 8:00 PM
Mostly clear night at 9:00 PM
69° 9:00 PM
Mostly clear night at 10:00 PM
67° 10:00 PM
Clear night at 11:00 PM
66° 11:00 PM
Clear night at 12:00 AM
65° Monday 12:00 AM
Clear night at 1:00 AM
64° 1:00 AM
Clear night at 2:00 AM
63° 2:00 AM
Clear night at 3:00 AM
62° 3:00 AM
Clear night at 4:00 AM
61° Monday 4:00 AM
Clear night at 5:00 AM
60° 5:00 AM
Clear night at 6:00 AM
59° 6:00 AM
Sunny at 7:00 AM
59° 7:00 AM
Sunny at 8:00 AM
60° Monday 8:00 AM
Sunny at 9:00 AM
64° 9:00 AM
Sunny at 10:00 AM
68° 10:00 AM
Sunny at 11:00 AM
71° 11:00 AM
Sunny at 12:00 PM
75° Monday 12:00 PM
Partly cloudy at 1:00 PM
76° 1:00 PM
Mostly cloudy at 2:00 PM
77° 2:00 PM
Sunny at 3:00 PM
78° 3:00 PM
Sunny at 4:00 PM
78° Monday 4:00 PM
Sunny at 5:00 PM
78° 5:00 PM
Mostly sunny at 6:00 PM
77° 6:00 PM
Partly cloudy at 7:00 PM
74° 7:00 PM
Clear night at 8:00 PM
71° Monday 8:00 PM
Mostly clear night at 5:00 AM
61° 5:00 AM
Mostly sunny at 8:00 AM
63° 8:00 AM
Sunny at 11:00 AM
75° 11:00 AM
Partly cloudy at 2:00 PM
82° Tuesday 2:00 PM
Mostly sunny at 5:00 PM
82° 5:00 PM
Mostly clear night at 8:00 PM
73° 8:00 PM
Mostly clear night at 11:00 PM
66° 11:00 PM
Overcast night at 2:00 AM
65° Wednesday 2:00 AM
Mostly cloudy night at 5:00 AM
67° 5:00 AM
Overcast at 8:00 AM
68° 8:00 AM
Overcast at 11:00 AM
78° 11:00 AM
Mostly cloudy at 2:00 PM
85° Wednesday 2:00 PM
Mostly sunny at 5:00 PM
86° 5:00 PM
Clear night at 8:00 PM
78° 8:00 PM
Mostly clear night at 11:00 PM
76° 11:00 PM
Moderate rain at 2:00 AM
73° Thursday 2:00 AM
Mostly clear night at 5:00 AM
69° 5:00 AM
Overcast at 8:00 AM
70° 8:00 AM
Moderate rain at 11:00 AM
70° 11:00 AM
Light rain at 2:00 PM
70° Thursday 2:00 PM
Light rain at 5:00 PM
70° 5:00 PM
Overcast night at 8:00 PM
69° 8:00 PM
Mostly clear night at 11:00 PM
66° 11:00 PM
Mostly clear night at 2:00 AM
63° Friday 2:00 AM
Sunny at 8:00 AM
62° 8:00 AM
Sunny at 2:00 PM
61° 2:00 PM
Partly cloudy night at 8:00 PM
74° 8:00 PM
Clear night at 2:00 AM
66° Saturday 2:00 AM
Mostly cloudy at 8:00 AM
56° 8:00 AM
Overcast at 2:00 PM
56° 2:00 PM
Clear night at 8:00 PM
76° 8:00 PM
Clear night at 2:00 AM
68° Sunday 2:00 AM
Mostly cloudy at 8:00 AM
65° 8:00 AM
Mostly sunny at 2:00 PM
69° 2:00 PM
Overcast night at 8:00 PM
88° 8:00 PM
Light rain at 2:00 AM
72° Monday 2:00 AM
Mostly cloudy at 8:00 AM
59° 8:00 AM
Sunny at 2:00 PM
56° 2:00 PM
Mostly clear night at 8:00 PM
71° 8:00 PM
Clear night at 2:00 AM
64° Tuesday 2:00 AM
Mostly sunny at 8:00 AM
54° 8:00 AM
Sunny at 2:00 PM
53° 2:00 PM
Clear night at 8:00 PM
72° 8:00 PM
Mostly clear night at 2:00 AM
66° Wednesday 2:00 AM
Sunny at 8:00 AM
55° 8:00 AM
Sunny at 2:00 PM
54° 2:00 PM
Mostly clear night at 8:00 PM
78° 8:00 PM
Mostly clear night at 2:00 AM
69° Thursday 2:00 AM
Mostly sunny at 8:00 AM
61° 8:00 AM
Mostly cloudy at 2:00 PM
60° 2:00 PM
Overcast night at 8:00 PM
82° 8:00 PM
Overcast night at 2:00 AM
74° Friday 2:00 AM
Overcast at 8:00 AM
70° 8:00 AM
Mostly sunny at 2:00 PM
66° 2:00 PM
Clear night at 8:00 PM
79° 8:00 PM
Clear night at 2:00 AM
66° Saturday 2:00 AM
Mostly cloudy at 8:00 AM
58° 8:00 AM
Partly cloudy at 2:00 PM
57° 2:00 PM
Partly cloudy night at 8:00 PM
70° 8:00 PM
Overcast night at 2:00 AM
66° Sunday 2:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Brentwood

Hourly forecast · Updated every 2 hours
Good
Nearest forecast value 12:00 PM
PM2.5 Fine particles Good 9,1µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 9,3µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 46,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Brentwood

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 5,4Moderate 😊Good
Tomorrow UV 7,3High 🙂Fair
Monday UV 7,0High 🙂Fair
Tuesday UV 7,1High 🙂Fair
Wednesday UV 7,0High 😊Good
Thursday UV 6,0High Unavailable
Friday UV 6,0High Unavailable
Hourly UV index today
12:00 PMUV 5,0 1:00 PMUV 3,2 2:00 PMUV 5,4 3:00 PMUV 4,9 4:00 PMUV 3,4 5:00 PMUV 2,0 6:00 PMUV 0,8 7:00 PMUV 0,2
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Brentwood

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 12:00 PM 1:00 PM 2:00 PM 3:00 PM Today 4:00 PM 5:00 PM 6:00 PM 7:00 PM Today 8:00 PM 9:00 PM 10:00 PM 11:00 PM Tomorrow 12:00 AM 1:00 AM 2:00 AM 3:00 AM Tomorrow 4:00 AM 5:00 AM 6:00 AM 7:00 AM Tomorrow 8:00 AM 9:00 AM 10:00 AM 11:00 AM Tomorrow 12:00 PM 1:00 PM 2:00 PM 3:00 PM Tomorrow 4:00 PM 5:00 PM 6:00 PM 7:00 PM Tomorrow 8:00 PM 9:00 PM 10:00 PM 11:00 PM Monday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Monday 4:00 AM 5:00 AM 6:00 AM 7:00 AM Monday 8:00 AM 9:00 AM 10:00 AM 11:00 AM Monday 12:00 PM 1:00 PM 2:00 PM 3:00 PM Monday 4:00 PM 5:00 PM 6:00 PM 7:00 PM Monday 8:00 PM 5:00 AM 8:00 AM 11:00 AM Tuesday 2:00 PM 5:00 PM 8:00 PM 11:00 PM Wednesday 2:00 AM 5:00 AM 8:00 AM 11:00 AM Wednesday 2:00 PM 5:00 PM 8:00 PM 11:00 PM Thursday 2:00 AM 5:00 AM 8:00 AM 11:00 AM Thursday 2:00 PM 5:00 PM 8:00 PM 11:00 PM Friday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Saturday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Sunday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Monday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Tuesday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Wednesday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Thursday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Friday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Saturday 2:00 AM 8:00 AM 2:00 PM 8:00 PM Sunday 2:00 AM
Sustained wind Max gusts
NIGHT SKY · BRENTWOOD, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

100/100Best-hour score
BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 9:20 PM–5:17 AM
Cloud cover 0% Real hourly forecast for the best viewing hour.
Moonlight 32% Last Quarter · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 40° high at the best hour.
Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min66%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
AUG 28–SEP 5
AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak
ACTIVE NOW
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
UPCOMING
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Brentwood were last refreshed today at 11:07 AM. The current forecast period extends through 07/09/2026 at 9:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.