Longmont Collocation 1 Air Quality

Monitoring Station · Longmont, United States
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

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AQI Forecast
22 7pm
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Station readings
22
20
19

Air Quality Forecast (24h)

PM2.54.6 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

20
Longmont - Municipal, Colorado, USA
0.0 km PM2.5: 4.8 µg/m³
27
Longmont - Municipal, Colorado, USA
0.0 km PM2.5: 6.5 µg/m³
13
Athens, Boulder-CU, Colorado, USA
22.0 km PM2.5: 3.1 µg/m³
19
Athens, Boulder-CU, Colorado, USA
22.0 km PM2.5: 4.6 µg/m³
15
Athens, Boulder-CU, Colorado, USA
22.0 km PM2.5: 3.6 µg/m³
29
Platteville Middle School
24.1 km PM2.5: 7.0 µg/m³
28
Silver Creek
25.0 km PM2.5: 6.7 µg/m³
25
Trail Winds Recreation Center
29.1 km PM2.5: 6.0 µg/m³

Nearby Cities

20 Longmont 28 Erie 29 Louisville 20 Boulder 17 Loveland 30 Broomfield 29 Northglenn 27 Thornton 29 Sherrelwood

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-10-20T22:43 UTC.