Today | Weather | Monday, September 21, 2026

Weather in Medford, Massachusetts

01:56 PM
Now
Cloudy Weather
66° F
Feels Like 70°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 4
Humidity 53 %
Today
Cloudy Weather
Day 68°
Night 52°
Precipitation 5 %
Wind 9 mph
UV Index (0 - 11+) 4

Medford Weather Forecast Updated

38 minutes ago
Last updated on

Air Quality in Medford

NOW
41 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.94 µg/m³
PM10 3.81 µg/m³
O3 0.045 ppm
NO2 1.2 ppb
SO2 0.4 ppb
CO 0.17 ppm
NH3 0.07 µg/m³
NO 0.41 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)
PM2.52.94 µg/m³
PM103.81 µg/m³
O387.5 µg/m³
NO22.3 µg/m³
SO21.05 µg/m³
CO196.38 µg/m³
NH30.07 µg/m³
NO0.41 µg/m³