Air Quality in Mercer Island, United States

Rain
10.2°C · 97.2% humidity
10.2°
Feels 10.2°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
24 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
7 4am
7
7
12 7am
11
10
9 10am
8
10
10 1pm
16
16
16 4pm
16
36
36 7pm
36
36
36 10pm
36
36
36 1am
36
16
Station readings
8
8
12
12
CAMS model adj -18
25
25
25
25
25
25
25
25
27
27
34
34
34
34
54
54
54
54
54
54
54
54
54
34
AD 728×90

Air Quality Index Trend

48h · 1 stn

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

97.2%
Humidity
65.2 km/h
Wind SSE
1015.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
12
2.76 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.52.76 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
2.76
Median
2.82
Average
0.7
Low
5.8
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +3.2
05-29
24.4° 10.2°
12.06 mm
05-30
20.9° 8.6°
0.62 mm
05-31
22.6° 8.7°
06-01
20.1° 4.7°
06-02
26.7° 9.4°
06-03
19.0° 6.7°
0.88 mm
06-04
17.7° 10.4°
1.06 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 2026-05-29T14:28 UTC.