Air Quality in SeaTac, United States

Partly Cloudy
12.4°C · 50.6% humidity
12.4°
Feels 12.4°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
12 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
28 3pm
28
23
18 6pm
9
9
9 9pm
9
9
9 12am
9
22
22 3am
47
47
47 6am
47
47
47 9am
22
22
22 12pm
22
22
Station readings
28
28
23
18
17
CAMS model adj -28
75
50
50
50
37
37
37
37
37
37
37
50
50
75
75
75
75
75
75
50
50
50
50
50
AD 728×90

PM2.5 Trend (24h)

27h · 16 stations
50.6%
Humidity
26.1 km/h
Wind N
1017.0 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for SeaTac?

Temperature & Precipitation

PM2.55.26 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (12 stations within 25 km)
5.26
Median
5.26
Average
3.0
Low
7.67
High
PM2.5 µg/m³ · Model: 4.4 · Bias: -0.9

What is the 7-day forecast for SeaTac?

04-09
13.2° 5.1°
04-10
15.8° 5.9°
04-11
11.2° 5.2°
1.31 mm
04-12
10.3° 5.1°
1.69 mm
04-13
9.2° 6.1°
1.31 mm
04-14
10.6° 6.4°
0.88 mm
04-15
10.8° 5.2°
Both models agree Avg diff: 1.9°C

Where are air quality stations near SeaTac?

38
SeaTac-Sunset Park
3.6 km PM2.5: 9.0 µg/m³
38
Tukwilla Allentown, Washington, USA
5.7 km
46
Tukwilla Allentown, Washington, USA
5.7 km
25
Tukwilla Allentown, Washington, USA
5.7 km
21
Des Moines-S 240th St
6.7 km PM2.5: 5.0 µg/m³
38
South Park, Seattle, Washington, USA
9.4 km
26
South Park, Seattle, Washington, USA
9.4 km
15
Seattle-S Myrtle St
10.1 km PM2.5: 3.7 µg/m³
9
Seattle-13th Ave S
10.6 km PM2.5: 2.2 µg/m³
23
Seattle-5th Ave S
11.1 km PM2.5: 5.6 µg/m³

What cities are near SeaTac?

22 Tukwila 22 Burien 25 Des Moines 22 Bryn Mawr-Skyway 22 Renton 24 Kent 24 East Hill-Meridian 24 Fairwood 20 Columbia City 25 Federal Way

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:49 UTC.