Today | Weather | Thursday, December 4, 2025

Weather in Sammamish, Washington

02:09 AM
Now
Rainy Weather
46° F
Feels Like 43°
Precipitation 62 %
Wind 4 mph
Humidity 94 %
Today
Rainy Weather
Day 46°
Night 45°
Precipitation 89 %
Wind 6 mph
UV Index (0 - 11+) 0

Sammamish Weather Forecast Updated

Last updated on

Air Quality in Sammamish

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

Pollutant Concentrations:

PM2.5 11.32 µg/m³
PM10 12.8 µg/m³
O3 0.006 ppm
NO2 9.4 ppb
SO2 0.3 ppb
CO 0.29 ppm
NH3 0.17 µg/m³
NO 0.03 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)
PM2.511.32 µg/m³
PM1012.8 µg/m³
O312.44 µg/m³
NO217.71 µg/m³
SO20.72 µg/m³
CO333.11 µg/m³
NH30.17 µg/m³
NO0.03 µg/m³