Air Quality in Broomfield, United States

Clear
35.6°C · 13.3% humidity
35.6°
Feels 35.6°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
32 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
43 11am
33
16
60 2pm
51
44
39 5pm
36
33
31 8pm
30
29
29 11pm
28
30
30 2am
27
27
27 5am
27
29
29 8am
29
27
Station readings
43
33
16
CAMS model adj +2
25
25
25
25
25
25
25
25
25
25
25
25
25
25
27
27
25
25
25
25
27
27
27
25
AD 728×90

Air Quality Index Trend

17h · 2 stn

Broomfield'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 Broomfield is 1.1× the WHO 24-hour guideline of 15 µg/m³.

13.3%
Humidity
13.4 km/h
Wind S
1008.8 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.27 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Broomfield?

Temperature & Precipitation

PM2.5 Trend

17h · 2 stations
PM2.516.27 µg/m³ ×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (32 stations within 25 km)
16.27
Median
15.83
Average
3.22
Low
21.1
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -10.3

What is the 7-day forecast for Broomfield?

07-21
35.6° 19.7°
0.19 mm
07-22
37.2° 19.8°
07-23
27.4° 19.6°
0.19 mm
07-24
35.7° 19.3°
0.25 mm
07-25
36.4° 18.4°
2.38 mm
07-26
32.3° 20.4°
2.19 mm
07-27
37.4° 18.0°
Both models agree Avg diff: 3.7°C

Where are air quality stations near Broomfield?

67
Northwest Open Space
7.0 km PM2.5: 19.9 µg/m³
66
Westminster Town Hall
7.2 km PM2.5: 19.0 µg/m³
60
Recreation Center, Senior Center, and Theatre
8.5 km PM2.5: 16.4 µg/m³
–
Rocky Flats - North
8.7 km
63
North Mor Elementary School
9.9 km PM2.5: 17.8 µg/m³
52
North Star
10.7 km PM2.5: 12.5 µg/m³
64
Westminster MAC
11.2 km PM2.5: 18.2 µg/m³
50
Thornton Community Park
12.1 km PM2.5: 12.0 µg/m³
60
Fremont Elementary School
12.6 km PM2.5: 16.5 µg/m³
67
Silver Creek
12.6 km PM2.5: 19.7 µg/m³

What cities are near Broomfield?

59 Louisville 59 Northglenn 55 Thornton 59 Sherrelwood 59 Arvada 60 Erie 59 Wheat Ridge 65 Commerce City 50 Boulder 58 Golden
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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 2026-07-21T20:10 UTC.