Today | Weather | Wednesday, October 22, 2025

Weather in Seattle, Washington

04:14 AM
Now
Cloudy Night
46° F
Feels Like 45°
Precipitation 0 %
Wind 5 mph
Humidity 92 %
Today
Rainy Weather
Day 63°
Night 52°
Precipitation 60 %
Wind 9 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Seattle Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (October 22, 2024)

Cloudy Night

Day

57°

Night

43°

Wind

4 mph

Precipitation

5

Air Quality in Seattle

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

Pollutant Concentrations:

PM2.5 8.5 µg/m³
PM10 11.38 µg/m³
O3 0.009 ppm
NO2 7.1 ppb
SO2 0.2 ppb
CO 0.19 ppm
NH3 1.41 µg/m³
NO 0.02 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)
PM2.58.5 µg/m³
PM1011.38 µg/m³
O317.15 µg/m³
NO213.34 µg/m³
SO20.59 µg/m³
CO221.94 µg/m³
NH31.41 µg/m³
NO0.02 µg/m³