Today | Weather | Saturday, August 29, 2026

Weather in Worcester, Massachusetts

04:14 AM
Now
Cloudy Night
61° F
Feels Like 57°
Precipitation 0 %
Wind 8 mph
Humidity 77 %
Today
Cloudy Weather
Day 77°
Night 59°
Precipitation 2 %
Wind 7 mph
UV Index (0 - 11+) 7

Worcester Weather Forecast Updated

52 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 29, 2025)
Cloudy Night

Day

70°

Night

52°

Wind

8 mph

Precipitation

55 %

Air Quality in Worcester

NOW
16 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.2 µg/m³
PM10 1.48 µg/m³
O3 0.017 ppm
NO2 2.1 ppb
SO2 0.2 ppb
CO 0.13 ppm
NH3 0.12 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)
PM2.51.2 µg/m³
PM101.48 µg/m³
O333.02 µg/m³
NO23.9 µg/m³
SO20.5 µg/m³
CO143.57 µg/m³
NH30.12 µg/m³
NO0 µg/m³