Air quality in Highlands Ranch
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
18 µg/m³
WHO guideline 15
PM10
19.3 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
11:00 PM
💨
PM2.5 18 µg/m³
63 Moderate
12:00 AM
💨
PM2.5 16.8 µg/m³
61 Moderate
1:00 AM
💨
PM2.5 15.4 µg/m³
58 Moderate
2:00 AM
💨
PM2.5 13.8 µg/m³
55 Moderate
3:00 AM
💨
PM2.5 12.2 µg/m³
51 Moderate
4:00 AM
💨
PM2.5 10.8 µg/m³
45 Good
5:00 AM
💨
PM2.5 9.8 µg/m³
41 Good
6:00 AM
💨
PM2.5 9.7 µg/m³
40 Good
7:00 AM
💨
PM2.5 11.8 µg/m³
49 Good
8:00 AM
💨
PM2.5 14 µg/m³
55 Moderate
9:00 AM
💨
PM2.5 10.9 µg/m³
45 Good
10:00 AM
💨
PM2.5 8.4 µg/m³
35 Good
Next few days daily max · US EPA AQI
Fri
💨
Moderate · UV Low
64
Sat
💨
Moderate · UV Low
61
Sun
💨
Moderate · UV Moderate
71
Mon
💨
Moderate · UV Moderate
70
Tue
💨
Moderate · UV Low
67
JavaScript is needed for the map — the city links below work without it.
Precip NEXRAD · NOAA Temp Wind Clouds Terrain