See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:40
Sunrise
18:53
Sunset
Moon
Waxing Crescent
12:33
Moonrise
20:57
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Brentwood.
Resources
UV Index
Humidity
Weather in Brentwood today, September 16, 2026
Cloud cover dominates in Brentwood on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a brighter morning, with limited cloud around 30% by 11:00. Conditions start on a settled note.
Expect highs of 25°C and cooler readings close to 13°C. Expect humidity between 51% and 95%, most humid near 23:00. Airflow remains manageable, reaching about 5.0 km/h around 14:00.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 15:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.8 km, with poorer spells close to 13.8 km. The sun rises at 06:40 and sets at 18:53, for a total of 12 hours 12 minutes of sunlight today.
Taken together, overcast skies in Brentwood on September 16, 2026 favour indoor or covered options, with temperatures near 25°C.
Frequently asked questions about weather in Brentwood
How warm does it get in Brentwood?
The warmest month in Brentwood is July, with average high temperatures of 26°C. The average temperature during this period is around 24°C.
How cold does it get in Brentwood?
The coldest month in Brentwood is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Brentwood?
The wettest month in Brentwood is December, with an average of 133mm of precipitation.
What is the driest time of year in Brentwood?
The driest month in Brentwood is June, with an average of 74mm of precipitation.
Explore more weather forecasts
- North Bay Shore, New York
- New York City, New York
- Central Islip, New York
- Los Angeles, California
- Hauppauge, New York
- Brooklyn, New York
- Bay Shore, New York
- Chicago, Illinois
- Islip, New York
- Houston, Texas
- Deer Park, New York
- Queens, New York
- East Islip, New York
- Phoenix, Arizona
- Commack, New York
- Philadelphia, Pennsylvania
