Athens, Boulder-CU, Colorado, USA Air Quality

Monitoring Station · Boulder, United States
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
97 11am
31
41
41 2pm
41
41
41 5pm
41
41
41 8pm
41
41
41 11pm
41
41
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Station readings
97
31
CAMS model adj +16
25
25
25
25
25
25
25
25
25
25
25
25
25
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25

Air Quality Forecast (24h)

PM2.57.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

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united-states-of-america-boulder-joslyn-court
2.8 km
44
Longmont Collocation 1
22.0 km PM2.5: 10.6 µg/m³
78
Longmont - Municipal, Colorado, USA
22.0 km PM2.5: 24.9 µg/m³
34
Fremont Elementary School
25.0 km PM2.5: 8.2 µg/m³
44
Westminster Town Hall
25.1 km PM2.5: 10.5 µg/m³
16
Northwest Open Space
25.4 km PM2.5: 3.8 µg/m³
39
North Mor Elementary School
28.4 km PM2.5: 9.3 µg/m³
25
North Star
29.2 km PM2.5: 6.0 µg/m³

Nearby Cities

32 Boulder 36 Louisville 35 Broomfield 41 Erie 41 Longmont 34 Northglenn 30 Arvada 26 Golden 30 Sherrelwood

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T14:36 UTC.