Today | Weather | Monday, September 21, 2026

Weather in Bangor, Maine

10:09 AM
Now
Cloudy Weather
55° F
Feels Like 55°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 3
Humidity 84 %
Today
Cloudy Weather
Day 66°
Night 41°
Precipitation 1 %
Wind 9 mph
UV Index (0 - 11+) 2

Bangor Weather Forecast Updated

52 minutes ago
Last updated on

Air Quality in Bangor

NOW
25 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.33 µg/m³
PM10 1.81 µg/m³
O3 0.027 ppm
NO2 1.3 ppb
SO2 0.3 ppb
CO 0.18 ppm
NH3 0.03 µg/m³
NO 0.75 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)
PM2.51.33 µg/m³
PM101.81 µg/m³
O352.91 µg/m³
NO22.45 µg/m³
SO20.81 µg/m³
CO204.49 µg/m³
NH30.03 µg/m³
NO0.75 µg/m³