What is the air quality in Issaquah today?

The current Air Quality Index (AQI) in Issaquah is 36 (Good). PM2.5 concentration is 8.63 µg/m³.

What is the temperature in Issaquah right now?

The current temperature in Issaquah is 17.5°C (feels like 17.5°C). Humidity is 46.6% and wind speed is 12.9 km/h.

Is it safe to go outside in Issaquah?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Issaquah, United States

Clear

17.5°C · 46.6% humidity

17.5°

Feels 17.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

16 stations

Nearby Monitoring Stations

AQI Forecast

28 10am

36 1pm

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Station readings

Air Quality Index Trend

48h · 17 stn

View full history →

Issaquah's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

46.6%

Humidity

12.9 km/h

Wind WSW

1020.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.63 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Issaquah?

Temperature & Precipitation

PM2.5 Trend

48h · 17 stations

PM2.58.63 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (16 stations within 25 km)

8.63

Median

7.27

Average

3.1

Low

15.9

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -2.1

What is the 7-day forecast for Issaquah?

10-20

17.5° 9.0°

3.56 mm

10-21

13.8° 6.7°

0.06 mm

10-22

20.1° 5.1°

2.31 mm

10-23

17.3° 6.5°

2.87 mm

10-24

12.2° 4.8°

3.81 mm

10-25

14.6° 5.1°

10-26

12.5° 8.1°

3.81 mm

Both models agree Avg diff: 3.7°C

Where are air quality stations near Issaquah?

Issaquah-Lake Sammamish

3.5 km PM2.5: 8.9 µg/m³

SE 12th St, Bellevue, Washington, USA

11.7 km PM2.5: 6.0 µg/m³

SE 12th St, Bellevue, Washington, USA

11.7 km PM2.5: 7.9 µg/m³

Tukwilla Allentown, Washington, USA

18.8 km PM2.5: 8.2 µg/m³

Seattle-S Myrtle St

19.7 km PM2.5: 6.5 µg/m³

North Bend Way, North Bend, Washington, USA

20.0 km PM2.5: 4.6 µg/m³

Beacon Hill, Seattle, Washington, USA

21.1 km PM2.5: 12.6 µg/m³

Beacon Hill, Seattle, Washington, USA

21.1 km PM2.5: 3.1 µg/m³

Beacon Hill, Seattle, Washington, USA

21.1 km PM2.5: 5.0 µg/m³

South Park, Seattle, Washington, USA

21.6 km PM2.5: 7.9 µg/m³

What cities are near Issaquah?

31 West Lake Sammamish 31 City of Sammamish 28 Sammamish 32 Fairwood 30 Renton 28 Mercer Island 38 Maple Valley 28 Bryn Mawr-Skyway 27 Union Hill-Novelty Hill 35 East Hill-Meridian

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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 2026-10-20T20:00 UTC.