Today | Weather | Monday, April 27, 2026

Weather in Brockton, Massachusetts

01:39 PM
Now
Sunny Weather
64° F
Feels Like 72°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 7
Humidity 35 %
Today
Sunny Weather
Day 66°
Night 34°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 8
Tomorrow Morning Frost 5 AM – 5 AM

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Brockton Weather Forecast Updated

8 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 27, 2025)
Partly Sunny with Showers

Day

55°

Night

46°

Wind

17 mph

UV Index

3

Precipitation

87 %

Air Quality in Brockton

NOW
55 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.79 µg/m³
PM10 10.95 µg/m³
O3 0.055 ppm
NO2 1.6 ppb
SO2 0.5 ppb
CO 0.16 ppm
NH3 0.1 µg/m³
NO 0.8 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.59.79 µg/m³
PM1010.95 µg/m³
O3108.86 µg/m³
NO23 µg/m³
SO21.19 µg/m³
CO187.07 µg/m³
NH30.1 µg/m³
NO0.8 µg/m³