Air Quality in Issaquah, United States
Clear
15.0°C · 41.4% humidity
15.0°
Feels 15.0°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
16
7pm
15
14
14
10pm
17
17
17
1am
17
55
55
4am
55
55
79
7am
55
55
55
10am
55
55
17
1pm
17
5
5
4pm
5
5
Station readings
16
15
14
14
CAMS model
adj -20
37
37
37
37
37
37
37
37
75
75
75
75
99
75
75
75
75
75
37
37
25
25
25
25
PM2.5 Trend (24h)
27h · 18 stations41.4%
Humidity
38.8 km/h
Wind NNW
1014.4 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for Issaquah?
Temperature & Precipitation
PM2.53.74 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
Station readings (6 stations within 25 km)
3.74
Median
3.99
Average
2.45
Low
6.27
High
PM2.5 µg/m³ · Model: 4.4 · Bias: +0.7
What is the 7-day forecast for Issaquah?
04-09
12.5° 2.6°
04-10
15.0° 3.2°
04-11
11.1° 4.9°
2.81 mm
04-12
8.4° 4.3°
6.13 mm
04-13
7.9° 5.5°
1.38 mm
04-14
10.2° 5.7°
4.44 mm
04-15
10.6° 5.3°
0.06 mm
Both models agree
Avg diff: 2.4°C
Where are air quality stations near Issaquah?
10
Issaquah-Lake Sammamish
9
SE 12th St, Bellevue, Washington, USA
30
Tukwilla Allentown, Washington, USA
17
Tukwilla Allentown, Washington, USA
46
Tukwilla Allentown, Washington, USA
14
Seattle-S Myrtle St
11
North Bend Way, North Bend, Washington, USA
12
North Bend Way, North Bend, Washington, USA
24
Beacon Hill, Seattle, Washington, USA
29
Beacon Hill, Seattle, Washington, USA
What cities are near Issaquah?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:09 UTC.