Air Quality in Sammamish, United States

Clear
20.7°C · 46.9% humidity
20.7°
Feels 20.7°
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
19 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
52 10am
53
55
50 1pm
50
50
50 4pm
50
50
50 7pm
50
50
50 10pm
50
50
50 1am
50
50
50 4am
50
50
50 7am
50
50
Station readings
52
53
55
55
43
CAMS model adj -4
54
54
66
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

48h · 3 stn

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.

46.9%
Humidity
15.1 km/h
Wind NW
1015.6 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
50
11.97 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Sammamish?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations
PM2.511.97 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (19 stations within 25 km)
11.97
Median
12.07
Average
8.0
Low
24.6
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +4.4

What is the 7-day forecast for Sammamish?

07-21
30.4° 10.1°
07-22
24.9° 9.9°
07-23
30.9° 12.9°
07-24
29.3° 10.8°
07-25
24.6° 11.0°
07-26
30.1° 9.3°
07-27
27.1° 11.4°
Both models agree Avg diff: 4.3°C

Where are air quality stations near Sammamish?

31
SE 12th St, Bellevue, Washington, USA
6.8 km PM2.5: 7.4 µg/m³
14
SE 12th St, Bellevue, Washington, USA
6.8 km PM2.5: 3.4 µg/m³
35
SE 12th St, Bellevue, Washington, USA
6.8 km PM2.5: 8.4 µg/m³
47
SE 12th St, Bellevue, Washington, USA
6.8 km PM2.5: 11.3 µg/m³
44
Issaquah-Lake Sammamish
10.0 km PM2.5: 10.5 µg/m³
25
Olive St, Seattle, Washington, USA
17.0 km PM2.5: 6.0 µg/m³
42
Seattle-NE 127th St
18.5 km PM2.5: 10.1 µg/m³
107
10th and Weller, Seattle, Washington, USA
18.6 km PM2.5: 37.9 µg/m³
68
10th and Weller, Seattle, Washington, USA
18.6 km PM2.5: 20.2 µg/m³
54
10th and Weller, Seattle, Washington, USA
18.6 km PM2.5: 13.5 µg/m³

What cities are near Sammamish?

51 Redmond 49 City of Sammamish 50 Union Hill-Novelty Hill 49 West Lake Sammamish 50 Kirkland 50 Cottage Lake 48 Issaquah 49 Mercer Island 52 Inglewood-Finn Hill 53 Bothell
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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 2026-07-21T20:48 UTC.