Today | Weather | Thursday, February 5, 2026

Weather in Worcester, Massachusetts

08:32 PM
Now
Cloudy Night
16° F
Feels Like 10°
Precipitation 0 %
Wind 6 mph
Humidity 72 %
Today
Cloudy Night
Day 30°
Night
Precipitation 0 %
Wind 6 mph

Worcester Weather Forecast Updated

1 minute ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 5, 2025)
Cloudy Weather

Day

27°

Night

14°

Wind

11 mph

UV Index

3

Precipitation

0 %

Air Quality in Worcester

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

Pollutant Concentrations:

PM2.5 17.91 µg/m³
PM10 22.44 µg/m³
O3 0.011 ppm
NO2 27.6 ppb
SO2 0.7 ppb
CO 0.38 ppm
NH3 2.68 µg/m³
NO 0.17 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)
PM2.517.91 µg/m³
PM1022.44 µg/m³
O322.31 µg/m³
NO251.87 µg/m³
SO21.87 µg/m³
CO436.92 µg/m³
NH32.68 µg/m³
NO0.17 µg/m³