Today | Weather | Thursday, November 27, 2025

Weather in Boston, Massachusetts

07:14 PM
Now
Cloudy Night
41° F
Feels Like 30°
Precipitation 0 %
Wind 14 mph
Humidity 58 %
Today
Cloudy Weather
Day 46°
Night 34°
Precipitation 0 %
Wind 14 mph
UV Index (0 - 11+) 2

Boston Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 27, 2024)
Cloudy Night

Day

50°

Night

39°

Wind

4 mph

Precipitation

25 %

Air Quality in Boston

NOW
26 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.39 µg/m³
PM10 3.45 µg/m³
O3 0.029 ppm
NO2 6.6 ppb
SO2 0.9 ppb
CO 0.15 ppm
NH3 0.78 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)
PM2.51.39 µg/m³
PM103.45 µg/m³
O356 µg/m³
NO212.33 µg/m³
SO22.46 µg/m³
CO166.75 µg/m³
NH30.78 µg/m³
NO0 µg/m³