Air Quality in City of Sammamish, United States
Partly Cloudy
21.2°C · 53.9% humidity
21.2°
Feels 21.2°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
22 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
44
9am
38
32
17
12pm
22
25
7
3pm
9
3
4
6pm
4
12
32
9pm
32
33
45
12am
45
62
62
3am
62
63
62
6am
62
62
Station readings
44
38
32
16
CAMS model
adj -21
54
54
54
54
54
54
34
34
27
27
27
34
54
54
54
66
66
83
83
83
84
83
83
83
Air Quality Index Trend
48h · 18 stnCity of 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
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
4.09 µg/m³
PM10▲
20.55 µg/m³
050100150200300500
What is the weather forecast for City of Sammamish?
Temperature & Precipitation
PM2.5 Trend
48h · 18 stationsPM2.54.09 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
Station readings (22 stations within 25 km)
4.09
Median
4.92
Average
2.6
Low
13.26
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +5.9
What is the 7-day forecast for City of 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: 4.1°C
Where are air quality stations near City of Sammamish?
12
Issaquah-Lake Sammamish
15
SE 12th St, Bellevue, Washington, USA
14
SE 12th St, Bellevue, Washington, USA
15
SE 12th St, Bellevue, Washington, USA
15
SE 12th St, Bellevue, Washington, USA
9
Olive St, Seattle, Washington, USA
9
Seattle-S Myrtle St
20
Beacon Hill, Seattle, Washington, USA
35
Beacon Hill, Seattle, Washington, USA
14
Seattle-16th Ave S
What cities are near City of Sammamish?
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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 2026-09-05T19:18 UTC.