Air Quality in Greeley, United States

Windy
35.9°C · 17.1% humidity
35.9°
Feels 35.9°
67
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast
25 8am
25
25
67 11am
55
47
40 2pm
36
33
31 5pm
29
27
27 8pm
26
26
28 11pm
26
27
27 2am
27
25
25 5am
27
54
AD 728×90

Air Quality Index Trend

46h · 10 stn

Greeley'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 Greeley is 1.3× the WHO 24-hour guideline of 15 µg/m³.

17.1%
Humidity
48.9 km/h
Wind ESE
1008.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

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

What is the weather forecast for Greeley?

Temperature & Precipitation

PM2.5 Trend

46h · 10 stations
PM2.519.5 µg/m³ ×1.3 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
19.5
Median
19.5
Average
19.5
Low
19.5
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -13.6

What is the 7-day forecast for Greeley?

07-21
35.9° 18.8°
3.44 mm
07-22
36.6° 16.7°
07-23
26.5° 15.7°
0.56 mm
07-24
36.0° 18.5°
07-25
36.7° 17.3°
0.06 mm
07-26
29.5° 17.1°
2.44 mm
07-27
37.2° 18.0°
Both models agree Avg diff: 4.9°C

Where are air quality stations near Greeley?

66
Timnath - Bethke Elementary
22.8 km PM2.5: 19.0 µg/m³ PM10: 38.0 µg/m³
68
Platteville Middle School
25.7 km PM2.5: 20.0 µg/m³

What cities are near Greeley?

68 Evans 68 Loveland 68 Fort Collins 58 Longmont 65 Erie 66 Louisville 65 Northglenn 66 Broomfield 59 Thornton 73 Boulder
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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 2026-07-21T17:13 UTC.