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Current weather in Brentwood is clear sky.

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Weather data for Brentwood is updated regularly with the latest available observations and forecasts.

Now · 11:37 AM

Brentwood Weather & Hourly Forecast

United States · Pennsylvania · 15227

80°F

Sunny

Feels like: 85°F

💧 Humidity 69% 🌡 Pressure 30.30 inHg 💨 Wind 4 mph 👁 Visibility 21.5 mi ☁ Clouds 1% ☀️ UV index 3.7 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Brentwood

Today

12:00 PM

Sunny

80° 💧 0.000 in 💨 4 mph H 69%30.30 inHg

3:00 PM

Light thunderstorms

84° 💧 0.018 in 💨 4 mph H 66%30.27 inHg

6:00 PM

Thunderstorms

75° 💧 0.386 in 💨 7 mph H 96%30.27 inHg

9:00 PM

Mostly cloudy night

72° 💧 0.002 in 💨 1 mph H 99%30.30 inHg

Tomorrow

12:00 AM

Mist at night

70° 💧 None 💨 3 mph H 100%30.27 inHg

3:00 AM

Fog at night

69° 💧 None 💨 2 mph H 100%30.24 inHg

6:00 AM

Fog at night

69° 💧 None 💨 3 mph H 99%30.21 inHg

9:00 AM

Fog

71° 💧 0.115 in 💨 4 mph H 96%30.21 inHg

12:00 PM

Light rain

74° 💧 0.035 in 💨 2 mph H 95%30.24 inHg

3:00 PM

Light thunderstorms

83° 💧 0.203 in 💨 7 mph H 73%30.15 inHg

6:00 PM

Light thunderstorms

75° 💧 0.108 in 💨 5 mph H 94%30.12 inHg

9:00 PM

Mostly clear night

72° 💧 0.004 in 💨 2 mph H 98%30.12 inHg

Friday

12:00 AM

Light thunderstorms

72° 💧 0.168 in 💨 6 mph H 98%30.12 inHg

3:00 AM

Light rain

68° 💧 0.005 in 💨 5 mph H 99%30.15 inHg

6:00 AM

Overcast night

67° 💧 None 💨 5 mph H 98%30.15 inHg

9:00 AM

Mostly cloudy

67° 💧 0.000 in 💨 6 mph H 92%30.21 inHg

Today

12:00 PM

Sunny

80° 💧 None 💨 4 mph H 69%30.30 inHg

1:00 PM

Mostly sunny

83° 💧 None 💨 3 mph H 67%30.30 inHg

2:00 PM

Mostly cloudy

84° 💧 0.000 in 💨 4 mph H 64%30.27 inHg

3:00 PM

Light thunderstorms

84° 💧 0.002 in 💨 4 mph H 66%30.27 inHg

4:00 PM

Light thunderstorms

84° 💧 0.007 in 💨 4 mph H 66%30.24 inHg

5:00 PM

Light thunderstorms

84° 💧 0.008 in 💨 3 mph H 68%30.24 inHg

6:00 PM

Thunderstorms

75° 💧 0.269 in 💨 7 mph H 96%30.27 inHg

7:00 PM

Thunderstorms

74° 💧 0.101 in 💨 2 mph H 98%30.27 inHg

8:00 PM

Light rain

73° 💧 0.015 in 💨 0 mph H 98%30.27 inHg

9:00 PM

Mostly cloudy night

72° 💧 0.002 in 💨 1 mph H 99%30.30 inHg

10:00 PM

Overcast night

72° 💧 None 💨 3 mph H 100%30.30 inHg

11:00 PM

Mostly cloudy night

71° 💧 None 💨 2 mph H 100%30.27 inHg

Tomorrow

12:00 AM

Mist at night

70° 💧 None 💨 3 mph H 100%30.27 inHg

1:00 AM

Fog at night

70° 💧 None 💨 3 mph H 100%30.27 inHg

2:00 AM

Fog at night

69° 💧 None 💨 2 mph H 100%30.24 inHg

3:00 AM

Fog at night

69° 💧 None 💨 2 mph H 100%30.24 inHg

4:00 AM

Fog at night

69° 💧 None 💨 2 mph H 100%30.21 inHg

5:00 AM

Fog at night

69° 💧 None 💨 3 mph H 100%30.21 inHg

6:00 AM

Fog at night

69° 💧 None 💨 3 mph H 99%30.21 inHg

7:00 AM

Fog at night

69° 💧 None 💨 3 mph H 99%30.21 inHg

8:00 AM

Fog

69° 💧 None 💨 5 mph H 99%30.21 inHg

9:00 AM

Fog

71° 💧 None 💨 4 mph H 96%30.21 inHg

10:00 AM

Fog

75° 💧 None 💨 4 mph H 90%30.21 inHg

11:00 AM

Thunderstorms

74° 💧 0.115 in 💨 5 mph H 96%30.24 inHg

12:00 PM

Light rain

74° 💧 0.033 in 💨 2 mph H 95%30.24 inHg

1:00 PM

Partly cloudy

81° 💧 0.001 in 💨 4 mph H 76%30.18 inHg

2:00 PM

Mostly cloudy

83° 💧 0.001 in 💨 5 mph H 73%30.15 inHg

3:00 PM

Light thunderstorms

83° 💧 0.003 in 💨 7 mph H 73%30.15 inHg

4:00 PM

Thunderstorms

77° 💧 0.137 in 💨 4 mph H 92%30.12 inHg

5:00 PM

Light thunderstorms

77° 💧 0.063 in 💨 3 mph H 92%30.12 inHg

6:00 PM

Light thunderstorms

75° 💧 0.039 in 💨 5 mph H 94%30.12 inHg

7:00 PM

Light thunderstorms

73° 💧 0.064 in 💨 3 mph H 97%30.12 inHg

8:00 PM

Light rain

72° 💧 0.004 in 💨 3 mph H 98%30.12 inHg

9:00 PM

Mostly clear night

72° 💧 0.000 in 💨 2 mph H 98%30.12 inHg

10:00 PM

Overcast night

72° 💧 None 💨 2 mph H 98%30.15 inHg

11:00 PM

Mist at night

72° 💧 0.003 in 💨 5 mph H 98%30.15 inHg

Friday

12:00 AM

Light thunderstorms

72° 💧 0.029 in 💨 6 mph H 98%30.12 inHg

1:00 AM

Light rain

70° 💧 0.038 in 💨 5 mph H 99%30.15 inHg

2:00 AM

Moderate rain

69° 💧 0.102 in 💨 6 mph H 98%30.15 inHg

3:00 AM

Light rain

68° 💧 0.005 in 💨 5 mph H 99%30.15 inHg

4:00 AM

Mostly cloudy night

67° 💧 0.000 in 💨 6 mph H 99%30.15 inHg

5:00 AM

Overcast night

67° 💧 None 💨 5 mph H 99%30.15 inHg

6:00 AM

Overcast night

67° 💧 None 💨 5 mph H 98%30.15 inHg

7:00 AM

Mostly cloudy night

67° 💧 None 💨 5 mph H 98%30.18 inHg

8:00 AM

Mostly cloudy

66° 💧 None 💨 6 mph H 97%30.18 inHg

9:00 AM

Mostly cloudy

67° 💧 0.000 in 💨 6 mph H 92%30.21 inHg

10:00 AM

Mostly cloudy

69° 💧 None 💨 7 mph H 80%30.21 inHg

11:00 AM

Mostly cloudy

70° 💧 None 💨 6 mph H 68%30.21 inHg

12:00 PM

Partly cloudy

72° 💧 None 💨 6 mph H 56%30.21 inHg

1:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 48%30.21 inHg

2:00 PM

Mostly cloudy

74° 💧 None 💨 5 mph H 46%30.18 inHg

3:00 PM

Partly cloudy

75° 💧 None 💨 5 mph H 46%30.15 inHg

4:00 PM

Mostly cloudy

75° 💧 None 💨 6 mph H 50%30.15 inHg

5:00 PM

Mostly cloudy

74° 💧 None 💨 5 mph H 55%30.12 inHg

6:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 61%30.12 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 4 mph H 72%30.15 inHg

8:00 PM

Clear night

67° 💧 None 💨 4 mph H 79%30.15 inHg

Saturday

5:00 AM

Clear night

58° 💧 None 💨 5 mph H 92%30.12 inHg

8:00 AM

Mostly sunny

60° 💧 None 💨 6 mph H 86%30.12 inHg

11:00 AM

Sunny

71° 💧 None 💨 3 mph H 68%30.09 inHg

2:00 PM

Mostly cloudy

79° 💧 None 💨 5 mph H 57%30.00 inHg

5:00 PM

Mostly sunny

81° 💧 None 💨 5 mph H 57%29.94 inHg

8:00 PM

Mostly clear night

73° 💧 None 💨 4 mph H 81%29.91 inHg

11:00 PM

Partly cloudy night

70° 💧 None 💨 6 mph H 89%29.94 inHg

Sunday

2:00 AM

Light rain

68° 💧 None 💨 9 mph H 96%29.91 inHg

5:00 AM

Moderate rain

68° 💧 None 💨 10 mph H 96%29.88 inHg

8:00 AM

Light rain

68° 💧 None 💨 7 mph H 98%29.91 inHg

11:00 AM

Light rain

75° 💧 None 💨 11 mph H 81%29.91 inHg

2:00 PM

Light thunderstorms

74° 💧 None 💨 9 mph H 88%29.88 inHg

5:00 PM

Overcast

73° 💧 None 💨 7 mph H 92%29.88 inHg

8:00 PM

Overcast night

70° 💧 None 💨 4 mph H 90%29.94 inHg

11:00 PM

Overcast night

68° 💧 None 💨 9 mph H 85%30.00 inHg

Monday

2:00 AM

Overcast night

66° 💧 None 💨 9 mph H 84%29.97 inHg

5:00 AM

Overcast night

64° 💧 None 💨 8 mph H 85%30.00 inHg

8:00 AM

Overcast

63° 💧 None 💨 7 mph H 85%30.03 inHg

11:00 AM

Overcast

65° 💧 None 💨 7 mph H 81%30.06 inHg

2:00 PM

Overcast

69° 💧 None 💨 7 mph H 77%30.03 inHg

5:00 PM

Overcast

70° 💧 None 💨 8 mph H 76%30.00 inHg

8:00 PM

Overcast night

67° 💧 None 💨 7 mph H 81%30.03 inHg

11:00 PM

Overcast night

65° 💧 None 💨 7 mph H 81%30.06 inHg

Tuesday

2:00 AM

Overcast night

65° 💧 None 💨 5 mph H 82%30.06 inHg

8:00 AM

Overcast

65° 💧 None 💨 6 mph H 89%30.06 inHg

2:00 PM

Partly cloudy

62° 💧 None 💨 7 mph H 91%30.12 inHg

8:00 PM

Overcast night

73° 💧 None 💨 7 mph H 70%30.15 inHg

Wednesday

2:00 AM

Overcast night

68° 💧 None 💨 10 mph H 79%30.15 inHg

8:00 AM

Mostly sunny

63° 💧 None 💨 9 mph H 82%30.24 inHg

2:00 PM

Mostly cloudy

62° 💧 None 💨 8 mph H 82%30.30 inHg

8:00 PM

Mostly cloudy night

70° 💧 None 💨 11 mph H 67%30.30 inHg

Thursday

2:00 AM

Mostly clear night

65° 💧 None 💨 8 mph H 77%30.30 inHg

8:00 AM

Overcast

62° 💧 None 💨 8 mph H 78%30.33 inHg

2:00 PM

Overcast

57° 💧 None 💨 7 mph H 78%30.39 inHg

8:00 PM

Overcast night

71° 💧 None 💨 7 mph H 59%30.33 inHg

Friday

2:00 AM

Overcast night

64° 💧 None 💨 8 mph H 71%30.30 inHg

8:00 AM

Mostly cloudy

60° 💧 None 💨 6 mph H 74%30.27 inHg

2:00 PM

Partly cloudy

57° 💧 None 💨 5 mph H 84%30.30 inHg

8:00 PM

Overcast night

75° 💧 None 💨 7 mph H 57%30.21 inHg

Saturday

2:00 AM

Mostly cloudy night

68° 💧 None 💨 4 mph H 78%30.12 inHg

8:00 AM

Overcast

64° 💧 None 💨 8 mph H 82%30.09 inHg

2:00 PM

Heavy rain

59° 💧 None 💨 5 mph H 93%30.12 inHg

8:00 PM

Overcast night

69° 💧 None 💨 5 mph H 80%30.09 inHg

Sunday

2:00 AM

Mostly cloudy night

66° 💧 None 💨 3 mph H 93%30.03 inHg

8:00 AM

Mostly sunny

63° 💧 None 💨 2 mph H 99%30.03 inHg

2:00 PM

Overcast

63° 💧 None 💨 3 mph H 99%30.06 inHg

8:00 PM

Light rain

75° 💧 None 💨 4 mph H 65%30.00 inHg

Monday

2:00 AM

Partly cloudy night

67° 💧 None 💨 3 mph H 88%30.00 inHg

8:00 AM

Mostly sunny

60° 💧 None 💨 3 mph H 96%30.03 inHg

2:00 PM

Partly cloudy

58° 💧 None 💨 5 mph H 96%30.06 inHg

8:00 PM

Mostly clear night

73° 💧 None 💨 3 mph H 59%30.03 inHg

Tuesday

2:00 AM

Clear night

65° 💧 None 💨 6 mph H 74%30.03 inHg

8:00 AM

Sunny

60° 💧 None 💨 4 mph H 88%30.03 inHg

2:00 PM

Sunny

61° 💧 None 💨 5 mph H 83%30.03 inHg

8:00 PM

Light rain

79° 💧 None 💨 6 mph H 58%29.97 inHg

Wednesday

2:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 76%29.94 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 6 mph H 89%29.97 inHg

2:00 PM

Partly cloudy

63° 💧 None 💨 4 mph H 93%30.00 inHg

8:00 PM

Mostly clear night

78° 💧 None 💨 3 mph H 63%30.00 inHg

Thursday

2:00 AM

Mostly clear night

70° 💧 None 💨 3 mph H 89%30.00 inHg

In Brentwood and, more broadly, across the state of Pennsylvania: The morning will start with a mix of sun and clouds, bringing mild temperatures around 56 degrees. By the afternoon, temperatures are expected to warm up to about 82 degrees. There is a possibility of rain during the day, with total accumulation around 0.13 inches, and the likelihood of rain is high. Winds will remain light from the southeast, generally around 4 mph, with occasional gusts reaching up to 13 mph. Overall, it will be a day with variable skies and a chance of scattered showers, so carrying an umbrella might be a good idea if you're planning to be outdoors. Temperatures will remain in a comfortable range, making for a mild to warm daytime.

15-Day Weather Outlook for Brentwood

TomorrowTomorrow

Thunderstorms 83°/69° 💧 None 💨 7 mph

Friday, Sep 18Fri Sep 18

Light thunderstorms 75°/66° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 81°/58° 💧 0.567 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Light thunderstorms 75°/68° 💧 0.931 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Overcast 70°/63° 💧 0.002 in 💨 9 mph

Tuesday, Sep 22Tue Sep 22

Overcast 73°/62° 💧 0.004 in 💨 7 mph

Wednesday, Sep 23Wed Sep 23

Overcast 70°/62° 💧 0.001 in 💨 11 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 71°/57° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Overcast 75°/57° 💧 None 💨 8 mph

Saturday, Sep 26Sat Sep 26

Heavy rain 69°/59° 💧 0.477 in 💨 8 mph

Sunday, Sep 27Sun Sep 27

Light rain 75°/63° 💧 0.106 in 💨 4 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 73°/58° 💧 0.024 in 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Light rain 79°/60° 💧 0.008 in 💨 6 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 78°/63° 💧 0.025 in 💨 6 mph

Thursday, Oct 1Thu Oct 1

Mostly sunny 70°/70° 💧 0.023 in 💨 3 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Brentwood

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Brentwood

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 12:00 PM

PM2.5 Fine particles Good 8,5µg/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 9,2µg/m³

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

O₃ Ozone Fair 75,5µg/m³

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

NO₂ Nitrogen dioxide Good 1,2µg/m³

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

Air quality is acceptable for most people.

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 5,7Moderate 🙂Fair

Tomorrow UV 4,6Moderate 🙂Fair

Friday UV 6,5High 🙂Fair

Saturday UV 6,6High 🙂Fair

Sunday UV 5,0Moderate 🙂Fair

Monday UV 7,0High —Unavailable

Tuesday UV 6,0High —Unavailable

Hourly UV index today

12:00 PMUV 5,4 1:00 PMUV 5,7 2:00 PMUV 3,5 3:00 PMUV 1,9 4:00 PMUV 0,8 5:00 PMUV 0,4 6:00 PMUV 0,1 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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

Sustained wind Max gusts

NIGHT SKY · BRENTWOOD, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

28/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 89% Real hourly forecast for the best viewing hour.

☾ Moonlight 27% Waxing Crescent · Moon about 9° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 9° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

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

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% 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.

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Forecast data for Brentwood were last refreshed today at 11:37 AM. The current forecast period extends through 18/09/2026 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.