Air Quality in Denver, United States

Clear
35.1°C · 13.3% humidity
35.1°
Feels 35.1°
61
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
36 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
21 8am
21
21
61 11am
50
42
36 2pm
32
29
26 5pm
25
24
23 8pm
22
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

Denver'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 Denver is 1.1× 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
PM2.5
61
16.77 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

12h · 1 station
PM2.516.77 µg/m³ ×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
16.77
Median
18.28
Average
3.39
Low
22.0
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -10.8
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°
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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.