Air Quality in Mountlake Terrace, United States

Windy
23.1°C · 46.9% humidity
23.1°
Feels 23.1°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
16 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
27 11am
21
17
20 2pm
18
17
16 5pm
13
14
21 8pm
21
20
20 11pm
20
20
20 2am
20
40
40 5am
52
52
52 8am
52
52
Station readings
27
21
17
18
CAMS model adj -14
34
34
34
27
27
27
27
25
27
34
34
34
34
34
34
34
34
54
54
66
66
66
66
66
AD 728×90

Air Quality Index Trend

48h · 13 stn

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

46.9%
Humidity
41.2 km/h
Wind NW
1015.9 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
20
4.71 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 13 stations
PM2.54.71 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
4.71
Median
4.5
Average
0.1
Low
8.44
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +5.3
09-05
24.3° 9.4°
09-06
23.1° 11.7°
09-07
20.6° 10.4°
1.13 mm
09-08
26.7° 10.1°
0.75 mm
09-09
26.5° 12.3°
0.19 mm
09-10
27.3° 11.6°
09-11
23.4° 8.8°
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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 2026-09-05T21:43 UTC.