Air Quality in City of Sammamish, United States

Cloudy
14.4°C · 73.1% humidity
14.4°
Feels 14.4°
79
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
21 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
93 3pm
93
73
79 6pm
81
83
84 9pm
85
85
86 12am
86
86
87 3am
87
87
87 6am
87
87
87 9am
87
87
87 12pm
87
87
Station readings
93
93
73
CAMS model adj +33
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

47h · 18 stn

City 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. Current PM2.5 concentration in City of Sammamish is 1.7× the WHO 24-hour guideline of 15 µg/m³.

73.1%
Humidity
28.5 km/h
Wind SSW
1017.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
79
25.54 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for City of Sammamish?

Temperature & Precipitation

PM2.5 Trend

47h · 18 stations
PM2.525.54 µg/m³ ×1.7 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (21 stations within 25 km)
25.54
Median
22.09
Average
12.85
Low
51.3
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -12.0

What is the 7-day forecast for City of Sammamish?

08-03
31.8° 9.3°
08-04
26.2° 10.4°
0.06 mm
08-05
32.2° 11.0°
08-06
23.7° 13.6°
0.06 mm
08-07
28.5° 12.4°
08-08
27.1° 8.3°
08-09
24.6° 8.5°
Both models agree Avg diff: 4.9°C

Where are air quality stations near City of Sammamish?

76
Issaquah-Lake Sammamish
6.1 km PM2.5: 24.2 µg/m³
64
SE 12th St, Bellevue, Washington, USA
8.3 km PM2.5: 18.3 µg/m³
71
SE 12th St, Bellevue, Washington, USA
8.3 km PM2.5: 21.6 µg/m³
57
SE 12th St, Bellevue, Washington, USA
8.3 km PM2.5: 15.0 µg/m³
67
SE 12th St, Bellevue, Washington, USA
8.3 km PM2.5: 19.7 µg/m³
68
Olive St, Seattle, Washington, USA
20.0 km PM2.5: 20.2 µg/m³
72
Seattle-S Myrtle St
20.6 km PM2.5: 22.3 µg/m³
71
Beacon Hill, Seattle, Washington, USA
20.7 km PM2.5: 21.6 µg/m³
61
Beacon Hill, Seattle, Washington, USA
20.7 km PM2.5: 16.9 µg/m³
78
Beacon Hill, Seattle, Washington, USA
20.7 km PM2.5: 24.9 µg/m³

What cities are near City of Sammamish?

81 Sammamish 83 West Lake Sammamish 75 Issaquah 77 Union Hill-Novelty Hill 77 Redmond 72 Mercer Island 71 Kirkland 73 Cottage Lake 65 Columbia City 68 Renton
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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 2026-08-08T01:08 UTC.