Today | Weather | Friday, October 2, 2026

Weather in Worcester, Massachusetts

03:01 PM
Now
Cloudy Weather
81° F
Feels Like 79°
Precipitation 30 %
Wind 16 mph
UV Index (0 - 11+) 1
Humidity 63 %
Today
Partly Sunny with Showers
Day 82°
Night 54°
Precipitation 80 %
Wind 13 mph
UV Index (0 - 11+) 4

Worcester Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 2, 2025)
Cloudy Night

Day

63°

Night

43°

Wind

7 mph

Precipitation

0 %

Air Quality in Worcester

NOW
78 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 25.18 µg/m³
PM10 29.34 µg/m³
O3 0.060 ppm
NO2 4.2 ppb
SO2 1.4 ppb
CO 0.17 ppm
NH3 0.32 µg/m³
NO 0.29 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)
PM2.5 – 25.18 µg/m³
PM10 – 29.34 µg/m³
O3 – 118.71 µg/m³
NO2 – 7.86 µg/m³
SO2 – 3.65 µg/m³
CO – 196.43 µg/m³
NH3 – 0.32 µg/m³
NO – 0.29 µg/m³