Air Quality in Fort Collins, United States

Windy
30.6°C · 28.9% humidity
30.6°
Feels 30.6°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
27 2pm
27
27
42 5pm
38
35
40 8pm
38
37
36 11pm
35
35
28 2am
28
27
27 5am
27
27
27 8am
27
27
27 11am
27
27
AD 728×90

Air Quality Index Trend

46h · 7 stn

Fort Collins's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

28.9%
Humidity
48.8 km/h
Wind SSE
1010.4 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
10.0 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Fort Collins?

Temperature & Precipitation

PM2.5 Trend

46h · 7 stations
PM2.510.0 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250

What is the 7-day forecast for Fort Collins?

08-03
34.3° 16.7°
0.56 mm
08-04
34.4° 19.0°
0.06 mm
08-05
37.4° 14.7°
0.13 mm
08-06
34.2° 16.3°
0.5 mm
08-07
35.2° 18.0°
08-08
36.7° 18.4°
08-09
34.5° 19.8°
0.19 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Fort Collins?

88
FTW1
4.9 km PM2.5: 29.6 µg/m³
86
FTW2
4.9 km PM2.5: 28.7 µg/m³
87
FTW3
4.9 km PM2.5: 29.4 µg/m³
76
Timnath - Bethke Elementary
13.8 km PM2.5: 24.0 µg/m³ PM10: 59.0 µg/m³

What cities are near Fort Collins?

42 Loveland 42 Greeley 42 Evans 42 Longmont 31 Erie 31 Boulder 61 Cheyenne 31 Louisville 51 Broomfield 51 Northglenn
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:59 UTC.