Air Quality in Centennial, United States

Clear
35.1°C · 13.3% humidity
35.1°
Feels 35.1°
67
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
14 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
21 8am
21
21
67 11am
54
45
38 2pm
33
30
27 5pm
25
24
23 8pm
23
24
24 11pm
24
30
30 2am
23
23
23 5am
23
23
Station readings
5
25
12
CAMS model adj -4
25
25
25
25
25
25
25
25
25
25
25
25
25
25
27
27
27
34
34
27
27
27
27
27
AD 728×90

Air Quality Index Trend

12h · 1 stn

Centennial's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Centennial is 1.3× the WHO 24-hour guideline of 15 µg/m³.

13.3%
Humidity
9.0 km/h
Wind NNW
1009.5 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
67
19.48 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Centennial?

Temperature & Precipitation

PM2.5 Trend

12h · 1 station
PM2.519.48 µg/m³ ×1.3 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (14 stations within 25 km)
19.48
Median
18.69
Average
3.39
Low
21.97
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -13.5

What is the 7-day forecast for Centennial?

07-21
35.1° 22.9°
07-22
37.0° 21.5°
07-23
25.0° 18.4°
1.13 mm
07-24
35.8° 22.9°
0.06 mm
07-25
35.4° 21.5°
3.31 mm
07-26
32.4° 22.3°
6.31 mm
07-27
36.7° 21.5°
Both models agree Avg diff: 4.2°C

Where are air quality stations near Centennial?

70
Smoky Hill Library
9.0 km PM2.5: 21.3 µg/m³
69
Runyon Elementary School
10.4 km PM2.5: 20.7 µg/m³
68
South Bannock Street
10.6 km PM2.5: 20.1 µg/m³
71
May Library
12.4 km PM2.5: 21.5 µg/m³
61
Arapahoe Community College
12.5 km PM2.5: 17.0 µg/m³ PM10: 38.0 µg/m³
65
Cushing Park
13.6 km PM2.5: 18.9 µg/m³
72
Broken Tee Golf Course
13.7 km PM2.5: 22.2 µg/m³
67
Sheridan Library
14.9 km PM2.5: 19.7 µg/m³
66
Sheridan Square Park
15.3 km PM2.5: 19.2 µg/m³
68
Northwest Greenbelt
15.3 km PM2.5: 20.4 µg/m³

What cities are near Centennial?

66 Castlewood 66 Southglenn 66 Greenwood Village 66 Highlands Ranch 68 Parker 64 Littleton 64 Columbine 61 Denver 64 Ken Caryl 62 Dakota Ridge
Get AQI alerts for Centennial

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:11 UTC.