united-states-of-america-boulder-joslyn-court Air Quality

Monitoring Station · Boulder, United States

0

Good

Air quality is satisfactory. Enjoy outdoor activities.

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GoodModerateUSGUnhealthyVery UnhealthyHazardous

AQI Forecast Calibrated

2 12am

13

13

13 3am

13

13

13 6am

13

13

13 9am

13

13

13 12pm

15

15

— 3pm

—

—

— 6pm

—

—

— 9pm

—

—

CAMS model adj -12

25

25

25

25

25

25

25

25

25

25

25

25

25

27

27

Air Quality Forecast (24h)

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Nearby Monitoring Stations

Athens, Boulder-CU, Colorado, USA

2.8 km PM2.5: 7.4 µg/m³

Longmont Collocation 1

20.3 km PM2.5: 5.4 µg/m³

Longmont - Municipal, Colorado, USA

20.3 km PM2.5: 12.0 µg/m³

Westminster Town Hall

27.3 km PM2.5: 6.4 µg/m³

Northwest Open Space

27.3 km PM2.5: 8.5 µg/m³

Fremont Elementary School

27.6 km PM2.5: 6.6 µg/m³

North Mor Elementary School

30.4 km PM2.5: 5.0 µg/m³

31.2 km PM2.5: 4.4 µg/m³

Nearby Cities

20 Boulder 23 Louisville 21 Erie 20 Longmont 24 Broomfield 21 Northglenn 25 Arvada 29 Golden 20 Thornton

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T03:52 UTC.