Today | Weather | Monday, September 21, 2026

Weather in Vancouver, Washington

10:55 AM
Now
Cloudy Weather
63° F
Feels Like 68°
Precipitation 25 %
Wind 6 mph
UV Index (0 - 11+) 3
Humidity 73 %
Today
Partly Sunny with Showers
Day 72°
Night 55°
Precipitation 69 %
Wind 6 mph
UV Index (0 - 11+) 4

Vancouver Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 21, 2025)
Night

Day

70°

Night

48°

Wind

5 mph

Precipitation

1 %

Air Quality in Vancouver

NOW
17 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.48 µg/m³
PM10 5.18 µg/m³
O3 0.018 ppm
NO2 1.6 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0.34 µg/m³
NO 0.47 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)
PM2.52.48 µg/m³
PM105.18 µg/m³
O335.37 µg/m³
NO23.08 µg/m³
SO20.41 µg/m³
CO131.09 µg/m³
NH30.34 µg/m³
NO0.47 µg/m³