Air Quality in SeaTac, United States

Windy
17.8°C · 40.1% humidity
17.8°
Feels 17.8°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
22 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
10 4pm
9
10
14 7pm
14
13
12 10pm
11
11
11 1am
10
10
10 4am
10
12
12 7am
12
12
12 10am
12
10
10 1pm
10
10
Station readings
8
12
12
CAMS model adj -15
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

47h · 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▲
14
3.27 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for SeaTac?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.53.27 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (22 stations within 25 km)
3.27
Median
3.69
Average
0.2
Low
8.9
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +2.5

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?

17
SeaTac-Sunset Park
3.6 km PM2.5: 4.1 µg/m³
51
Tukwilla Allentown, Washington, USA
5.7 km PM2.5: 12.1 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
15
Des Moines-S 240th St
6.7 km PM2.5: 3.5 µg/m³
67
South Park, Seattle, Washington, USA
9.4 km PM2.5: 19.7 µg/m³
31
South Park, Seattle, Washington, USA
9.4 km PM2.5: 7.4 µg/m³
12
Seattle-S Myrtle St
10.1 km PM2.5: 2.8 µg/m³
11
Seattle-13th Ave S
10.6 km PM2.5: 2.7 µg/m³
23
Seattle-5th Ave S
11.1 km PM2.5: 5.4 µg/m³

What cities are near SeaTac?

11 Tukwila 15 Burien 14 Des Moines 11 Bryn Mawr-Skyway 12 Renton 14 Kent 14 East Hill-Meridian 14 Fairwood 16 Columbia City 13 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 2026-06-09T02:11 UTC.