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

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
25.54
Median
22.09
Average
12.85
Low
51.3
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -12.0
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°
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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.