Today | Weather | Wednesday, August 12, 2026

Weather in Shoreline, Washington

04:53 AM
Now
Cloudy Weather
59° F
Feels Like 57°
Precipitation 1 %
Wind 4 mph
Humidity 84 %
Today
Cloudy Weather
Day 73°
Night 57°
Precipitation 25 %
Wind 6 mph
UV Index (0 - 11+) 6

Shoreline Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 12, 2025)

Day

88°

Night

64°

Air Quality in Shoreline

NOW
16 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.05 µg/m³
PM10 2.98 µg/m³
O3 0.018 ppm
NO2 1 ppb
SO2 0.2 ppb
CO 0.07 ppm
NH3 0.16 µg/m³
NO 0 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)
PM2.52.05 µg/m³
PM102.98 µg/m³
O334.42 µg/m³
NO21.97 µg/m³
SO20.59 µg/m³
CO75.49 µg/m³
NH30.16 µg/m³
NO0 µg/m³