Today | Weather | Thursday, October 15, 2026

Weather in Boston, Massachusetts

01:11 AM
Now
Cloudy Night
48° F
Feels Like 48°
Precipitation 8 %
Wind 6 mph
Humidity 75 %
Today
Cloudy Weather
Day 61°
Night 48°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 3

Boston Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 15, 2025)
Cloudy Night

Day

63°

Night

43°

Wind

10 mph

Precipitation

2 %

Air Quality in Boston

NOW
26 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.6 µg/m³
PM10 1.04 µg/m³
O3 0.028 ppm
NO2 2 ppb
SO2 0.2 ppb
CO 0.13 ppm
NH3 0.18 µg/m³
NO 0 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)
PM2.5 – 0.6 µg/m³
PM10 – 1.04 µg/m³
O3 – 55.07 µg/m³
NO2 – 3.76 µg/m³
SO2 – 0.49 µg/m³
CO – 150.95 µg/m³
NH3 – 0.18 µg/m³
NO – 0 µg/m³