Air Quality in SeaTac, United States

Windy
17.8°C · 40.1% humidity
17.8°
Feels 17.8°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
24 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
12 4pm
11
12
13 7pm
12
12
12 10pm
12
12
12 1am
12
12
12 4am
12
14
14 7am
14
14
14 10am
14
12
12 1pm
12
12
Station readings
8
12
12
21
CAMS model adj -13
25
24
25
24
25
25
25
25
25
25
25
25
25
25
27
27
27
27
27
27
25
25
25
25
AD 728×90

Air Quality Index Trend

48h · 1 stn

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

40.1%
Humidity
82.5 km/h
Wind WSW
1016.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
13
3.24 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for SeaTac?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.53.24 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (24 stations within 25 km)
3.24
Median
3.83
Average
0.2
Low
8.4
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +2.6

What is the 7-day forecast for SeaTac?

06-09
17.8° 11.1°
1.19 mm
06-10
23.2° 12.4°
06-11
23.0° 9.9°
06-12
33.6° 13.0°
0.06 mm
06-13
32.4° 8.6°
06-14
24.0° 12.2°
0.13 mm
06-15
25.5° 9.1°
1.25 mm
Both models agree Avg diff: 3.9°C

Where are air quality stations near SeaTac?

15
SeaTac-Sunset Park
3.6 km PM2.5: 3.5 µg/m³
55
Tukwilla Allentown, Washington, USA
5.7 km PM2.5: 14.0 µg/m³
6
Tukwilla Allentown, Washington, USA
5.7 km PM2.5: 1.4 µg/m³
51
Tukwilla Allentown, Washington, USA
5.7 km PM2.5: 12.1 µg/m³
18
Des Moines-S 240th St
6.7 km PM2.5: 4.2 µg/m³
15
South Park, Seattle, Washington, USA
9.4 km PM2.5: 3.6 µg/m³
10
South Park, Seattle, Washington, USA
9.4 km PM2.5: 2.4 µg/m³
13
Seattle-S Myrtle St
10.1 km PM2.5: 3.1 µg/m³
22
Seattle-13th Ave S
10.6 km PM2.5: 5.2 µg/m³
22
Seattle-5th Ave S
11.1 km PM2.5: 5.3 µg/m³

What cities are near SeaTac?

10 Tukwila 15 Burien 15 Des Moines 10 Bryn Mawr-Skyway 12 Renton 15 Kent 15 East Hill-Meridian 14 Fairwood 18 Columbia City 15 Federal Way
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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 2026-06-09T02:16 UTC.