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
AD 728×90

PM2.5 Trend (24h)

27h · 18 stations
41.4%
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
AD 300×250
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
3.5 km PM2.5: 2.4 µg/m³
9
SE 12th St, Bellevue, Washington, USA
11.7 km
30
Tukwilla Allentown, Washington, USA
18.8 km
17
Tukwilla Allentown, Washington, USA
18.8 km
46
Tukwilla Allentown, Washington, USA
18.8 km
14
Seattle-S Myrtle St
19.7 km PM2.5: 3.4 µg/m³
11
North Bend Way, North Bend, Washington, USA
20.0 km
12
North Bend Way, North Bend, Washington, USA
20.0 km
24
Beacon Hill, Seattle, Washington, USA
21.1 km
29
Beacon Hill, Seattle, Washington, USA
21.1 km

What cities are near Issaquah?

13 West Lake Sammamish 14 City of Sammamish 12 Sammamish 15 Fairwood 15 Renton 13 Mercer Island 15 Maple Valley 15 Bryn Mawr-Skyway 11 Union Hill-Novelty Hill 15 East Hill-Meridian

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:14 UTC.