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

Monitoring Station · Boulder, United States
0
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
65 5pm
49
27
59 8pm
59
59
59 11pm
59
59
59 2am
59
59
59 5am
59
61
— 8am
—
—
— 11am
—
—
— 2pm
—
—
CAMS model adj +34
25
25
25
25
25
25
25
25
25
25
25
25
25
25
27

Air Quality Forecast (24h)

View city history →

Nearby Monitoring Stations

30
Athens, Boulder-CU, Colorado, USA
2.8 km PM2.5: 7.2 µg/m³
-
Rocky Flats - North
15.6 km
60
Longmont Collocation 1
20.3 km PM2.5: 16.4 µg/m³
6
Longmont - Municipal, Colorado, USA
20.3 km PM2.5: 1.4 µg/m³
63
Westminster Town Hall
27.3 km PM2.5: 18.0 µg/m³
67
Northwest Open Space
27.3 km PM2.5: 19.9 µg/m³
61
Fremont Elementary School
27.6 km PM2.5: 16.9 µg/m³
58
Recreation Center, Senior Center, and Theatre
28.1 km PM2.5: 15.6 µg/m³

Nearby Cities

50 Boulder 57 Louisville 59 Erie 61 Longmont 59 Broomfield 59 Northglenn 58 Arvada 58 Golden 55 Thornton

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:50 UTC.