Waltham Real-time Air Quality Index (AQI) & Pollen Report - Air Matters

Waltham

Middlesex County, Massachusetts

2026-05-19 21:00

AQI (US)

Moderate

Pollutants|Pollens

PM2.5

μg/m³

14.4

PM10

μg/m³

35

Weather

25℃

78%

22 kph

0 of 11

Historical Data

Data Sources

http://www.airnow.gov/

Get the App

Air Matters

Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby