Today | Weather | Wednesday, November 4, 2026

Weather in Bellingham, Washington

06:28 AM
Now
Cloudy Night
34° F
Feels Like 34°
Precipitation 0 %
Wind 4 mph
Humidity 99 %
Today
Cloudy Weather
Day 57°
Night 48°
Precipitation 25 %
Wind 5 mph
UV Index (0 - 11+) 2
Overnight Frost 3 AM – 3 AM

Bellingham Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 4, 2025)
Rainy Weather

Day

55°

Night

48°

Wind

10 mph

Precipitation

91 %

Air Quality in Bellingham

NOW
62 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 17.5 µg/m³
PM10 20.93 µg/m³
O3 0.005 ppm
NO2 14.8 ppb
SO2 0.5 ppb
CO 0.33 ppm
NH3 0.66 µg/m³
NO 4.45 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 17.5 µg/m³
PM10 – 20.93 µg/m³
O3 – 10.1 µg/m³
NO2 – 27.84 µg/m³
SO2 – 1.34 µg/m³
CO – 377.83 µg/m³
NH3 – 0.66 µg/m³
NO – 4.45 µg/m³