Today | Weather | Monday, October 12, 2026

Weather in Bellevue, Washington

06:08 PM
Now
Cloudy Weather
59° F
Feels Like 61°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 0
Humidity 49 %
Today
Sunny Weather
Day 63°
Night 45°
Precipitation 1 %
Wind 4 mph
UV Index (0 - 11+) 3

Bellevue Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 12, 2025)
Partly Sunny with Showers

Day

55°

Night

45°

Wind

8 mph

UV Index

10

Precipitation

96 %

Air Quality in Bellevue

NOW
32 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.91 µg/m³
PM10 2.36 µg/m³
O3 0.035 ppm
NO2 2.5 ppb
SO2 0.6 ppb
CO 0.14 ppm
NH3 0.7 µg/m³
NO 0.21 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)
PM2.5 – 1.91 µg/m³
PM10 – 2.36 µg/m³
O3 – 68.79 µg/m³
NO2 – 4.73 µg/m³
SO2 – 1.63 µg/m³
CO – 158.33 µg/m³
NH3 – 0.7 µg/m³
NO – 0.21 µg/m³