Today | Weather | Sunday, December 28, 2025

Weather in Boston, Massachusetts

01:52 AM
Now
Cloudy Night
19° F
Feels Like 12°
Precipitation 0 %
Wind 8 mph
Humidity 75 %
Today
Cloudy Weather
Day 36°
Night 32°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 2

Boston Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 28, 2024)
Rainy Weather

Day

45°

Night

37°

Wind

4 mph

UV Index

1

Precipitation

89 %

Air Quality in Boston

NOW
29 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 6.88 µg/m³
PM10 8.07 µg/m³
O3 0.025 ppm
NO2 8.4 ppb
SO2 0.4 ppb
CO 0.21 ppm
NH3 0.57 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)
PM2.56.88 µg/m³
PM108.07 µg/m³
O349.91 µg/m³
NO215.84 µg/m³
SO21.16 µg/m³
CO235.44 µg/m³
NH30.57 µg/m³
NO0 µg/m³