Air Quality in West Lake Sammamish, United States

Partly Cloudy
21.2°C · 53.9% humidity
21.2°
Feels 21.2°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
21 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
15 6am
20
28
18 9am
19
19
19 12pm
19
19
0 3pm
0
0
0 6pm
0
0
19 9pm
19
19
31 12am
31
48
48 3am
48
49
Station readings
15
20
28
20
CAMS model adj -35
54
54
54
54
54
54
54
54
54
34
34
27
27
27
34
54
54
54
66
66
83
83
83
84
AD 728×90

Air Quality Index Trend

48h · 15 stn

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

53.9%
Humidity
25.1 km/h
Wind NNW
1019.0 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
18
4.25 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for West Lake Sammamish?

Temperature & Precipitation

PM2.5 Trend

48h · 15 stations
PM2.54.25 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (21 stations within 25 km)
4.25
Median
4.96
Average
0.1
Low
9.34
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +5.8

What is the 7-day forecast for West Lake Sammamish?

09-05
23.7° 9.3°
09-06
25.0° 11.6°
09-07
21.9° 9.4°
1.94 mm
09-08
28.0° 9.8°
2.63 mm
09-09
25.9° 12.5°
0.94 mm
09-10
28.8° 11.8°
09-11
24.7° 8.3°
Both models agree Avg diff: 4.2°C

Where are air quality stations near West Lake Sammamish?

20
Issaquah-Lake Sammamish
3.9 km PM2.5: 4.7 µg/m³
14
SE 12th St, Bellevue, Washington, USA
4.4 km PM2.5: 3.4 µg/m³
15
SE 12th St, Bellevue, Washington, USA
4.4 km PM2.5: 3.6 µg/m³
18
Seattle-S Myrtle St
15.2 km PM2.5: 4.4 µg/m³
26
Beacon Hill, Seattle, Washington, USA
15.6 km PM2.5: 6.2 µg/m³
20
Beacon Hill, Seattle, Washington, USA
15.6 km PM2.5: 4.8 µg/m³
17
Seattle-16th Ave S
15.8 km PM2.5: 4.0 µg/m³
21
Olive St, Seattle, Washington, USA
15.9 km PM2.5: 5.0 µg/m³
25
10th and Weller, Seattle, Washington, USA
16.5 km PM2.5: 6.0 µg/m³
29
Seattle-13th Ave S
16.6 km PM2.5: 7.0 µg/m³

What cities are near West Lake Sammamish?

19 City of Sammamish 18 Sammamish 19 Issaquah 20 Mercer Island 20 Redmond 19 Union Hill-Novelty Hill 21 Columbia City 20 Renton 20 Bryn Mawr-Skyway 21 Kirkland
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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 2026-09-05T16:34 UTC.