Air Quality in SeaTac, United States

Rain
28.8°C · 28.6% humidity
28.8°
Feels 28.8°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
21 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
9 12pm
9
9
18 3pm
15
14
12 6pm
11
11
10 9pm
10
10
9 12am
9
0
0 3am
0
0
0 6am
0
0
0 9am
0
0
Station readings
8
8
8
8
CAMS model adj -45
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
27
25
25
25
25
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.

28.6%
Humidity
42.0 km/h
Wind SSW
1018.8 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
18
4.17 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for SeaTac?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.54.17 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (21 stations within 25 km)
4.17
Median
4.85
Average
1.9
Low
24.9
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +6.7

What is the 7-day forecast for SeaTac?

05-28
23.6° 13.2°
7.63 mm
05-29
28.8° 10.3°
12.38 mm
05-30
22.1° 8.4°
2.0 mm
05-31
25.4° 11.3°
06-01
19.3° 6.2°
06-02
29.5° 10.4°
06-03
21.1° 7.9°
2.31 mm
Both models agree Avg diff: 3.8°C

Where are air quality stations near SeaTac?

8
SeaTac-Sunset Park
3.6 km PM2.5: 1.8 µg/m³
13
Tukwilla Allentown, Washington, USA
5.7 km PM2.5: 3.1 µg/m³
37
Tukwilla Allentown, Washington, USA
5.7 km PM2.5: 8.9 µg/m³
31
Tukwilla Allentown, Washington, USA
5.7 km PM2.5: 7.4 µg/m³
8
Des Moines-S 240th St
6.7 km PM2.5: 1.9 µg/m³
65
South Park, Seattle, Washington, USA
9.4 km PM2.5: 18.8 µg/m³
29
South Park, Seattle, Washington, USA
9.4 km PM2.5: 7.0 µg/m³
9
Seattle-S Myrtle St
10.1 km PM2.5: 2.2 µg/m³
13
Seattle-13th Ave S
10.6 km PM2.5: 3.2 µg/m³
13
Seattle-5th Ave S
11.1 km PM2.5: 3.1 µg/m³

What cities are near SeaTac?

17 Tukwila 19 Burien 12 Des Moines 18 Bryn Mawr-Skyway 19 Renton 15 Kent 18 East Hill-Meridian 19 Fairwood 24 Columbia City 9 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 2026-05-28T22:50 UTC.