Today | Weather | Thursday, February 26, 2026

Weather in Newton, Massachusetts

01:40 PM
Now
Cloudy Weather
43° F
Feels Like 43°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 3
Humidity 42 %
Today
Cloudy Weather
Day 43°
Night 14°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 4
Tomorrow Morning Frost 12 AM – 9 AM

Newton Weather Forecast Updated

40 minutes ago
Last updated on

Air Quality in Newton

NOW
47 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.13 µg/m³
PM10 5.77 µg/m³
O3 0.051 ppm
NO2 3.5 ppb
SO2 0.4 ppb
CO 0.18 ppm
NH3 0.21 µg/m³
NO 1.44 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)
PM2.55.13 µg/m³
PM105.77 µg/m³
O399.98 µg/m³
NO26.57 µg/m³
SO21.08 µg/m³
CO211.76 µg/m³
NH30.21 µg/m³
NO1.44 µg/m³