Today | Weather | Thursday, December 4, 2025

Weather in Brockton, Massachusetts

04:30 AM
Now
Cloudy Night
30° F
Feels Like 27°
Precipitation 0 %
Wind 6 mph
Humidity 81 %
Today
Snowy Weather
Day 39°
Night
Precipitation 65 %
Wind 16 mph
UV Index (0 - 11+) 1

Brockton Weather Forecast Updated

48 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 4, 2024)
Snowy Weather

Day

39°

Night

36°

Wind

14 mph

Precipitation

100 %

Air Quality in Brockton

NOW
45 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 10.73 µg/m³
PM10 15.96 µg/m³
O3 0.026 ppm
NO2 14.8 ppb
SO2 2 ppb
CO 0.22 ppm
NH3 0.4 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.510.73 µg/m³
PM1015.96 µg/m³
O351.75 µg/m³
NO227.89 µg/m³
SO25.22 µg/m³
CO256.36 µg/m³
NH30.4 µg/m³
NO0 µg/m³