Today | Weather | Wednesday, October 22, 2025

Weather in Marysville, Washington

04:16 AM
Now
Foggy Weather
39° F
Feels Like 37°
Precipitation 0 %
Wind 6 mph
Humidity 93 %
Today
Rainy Weather
Day 63°
Night 52°
Precipitation 55 %
Wind 7 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.

Marysville Weather Forecast Updated

Last updated on

Air Quality in Marysville

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

Pollutant Concentrations:

PM2.5 8.24 µg/m³
PM10 11.08 µg/m³
O3 0.012 ppm
NO2 8.7 ppb
SO2 0.2 ppb
CO 0.19 ppm
NH3 1.46 µg/m³
NO 0.06 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)
PM2.58.24 µg/m³
PM1011.08 µg/m³
O322.99 µg/m³
NO216.39 µg/m³
SO20.52 µg/m³
CO221.45 µg/m³
NH31.46 µg/m³
NO0.06 µg/m³