Today | Weather | Tuesday, September 1, 2026

Weather in Shoreline, Washington

08:25 AM
Now
Cloudy Weather
55° F
Feels Like 54°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 0
Humidity 93 %
Today
Cloudy Weather
Day 72°
Night 57°
Precipitation 13 %
Wind 11 mph
UV Index (0 - 11+) 5

Shoreline Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 1, 2025)

Day

75°

Night

57°

Air Quality in Shoreline

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

Pollutant Concentrations:

PM2.5 3.19 µg/m³
PM10 5.11 µg/m³
O3 0.012 ppm
NO2 2.3 ppb
SO2 0.2 ppb
CO 0.10 ppm
NH3 0.27 µg/m³
NO 0.09 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)
PM2.53.19 µg/m³
PM105.11 µg/m³
O324.25 µg/m³
NO24.35 µg/m³
SO20.5 µg/m³
CO114.24 µg/m³
NH30.27 µg/m³
NO0.09 µg/m³