Today | Weather | Monday, June 29, 2026

Weather in Sammamish, Washington

06:13 PM
Now
Cloudy Weather
63° F
Feels Like 64°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 68 %
Today
Cloudy Weather
Day 63°
Night 54°
Precipitation 40 %
Wind 7 mph
UV Index (0 - 11+) 2

Sammamish Weather Forecast Updated

4 minutes ago
Last updated on

Air Quality in Sammamish

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.87 µg/m³
PM10 5.01 µg/m³
O3 0.031 ppm
NO2 0.8 ppb
SO2 0.4 ppb
CO 0.07 ppm
NH3 0.18 µg/m³
NO 0.18 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)
PM2.51.87 µg/m³
PM105.01 µg/m³
O360.74 µg/m³
NO21.56 µg/m³
SO20.97 µg/m³
CO85.82 µg/m³
NH30.18 µg/m³
NO0.18 µg/m³