Air Quality in Bellevue, United States

Windy
17.9°C · 39.2% humidity
17.9°
Feels 17.9°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
28 11am
28
28
28 2pm
28
28
28 5pm
28
28
29 8pm
31
31
31 11pm
31
31
29 2am
29
29
28 5am
29
29
28 8am
28
29
Station readings
26
33
31
28
CAMS model adj +4
24
24
24
24
24
24
24
24
24
25
27
27
27
27
27
25
25
25
24
25
25
24
24
25
AD 728×90

Air Quality Index Trend

14h · 1 stn

Bellevue's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

39.2%
Humidity
57.5 km/h
Wind NW
1018.8 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
28
6.85 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

14h · 1 station
PM2.56.85 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
6.85
Median
6.85
Average
6.7
Low
7.0
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -0.9
09-05
18.1° 15.8°
09-06
23.3° 10.0°
0.06 mm
09-07
23.9° 13.3°
0.13 mm
09-08
21.5° 13.0°
37.25 mm
09-09
29.5° 14.1°
0.25 mm
09-10
26.2° 15.7°
6.75 mm
09-11
21.9° 14.1°
2.5 mm
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T19:26 UTC.