Today | Weather | Sunday, March 15, 2026

Weather in Seattle, Washington

02:08 PM
Now
Rainy Weather
46° F
Feels Like 43°
Precipitation 60 %
Wind 8 mph
UV Index (0 - 11+) 1
Humidity 55 %
Today
Rainy Weather
Day 48°
Night 43°
Precipitation 94 %
Wind 6 mph
UV Index (0 - 11+) 4

Seattle Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 15, 2025)
Rainy Weather

Day

48°

Night

39°

Wind

14 mph

UV Index

1

Precipitation

100 %

Air Quality in Seattle

NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.33 µg/m³
PM10 2.72 µg/m³
O3 0.046 ppm
NO2 2.4 ppb
SO2 0.7 ppb
CO 0.15 ppm
NH3 0.59 µg/m³
NO 0.56 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)
PM2.51.33 µg/m³
PM102.72 µg/m³
O390.82 µg/m³
NO24.51 µg/m³
SO21.92 µg/m³
CO170.48 µg/m³
NH30.59 µg/m³
NO0.56 µg/m³