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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Thursday, February 26, 2026
Active Weather Warnings
Fort Collins, Colorado
3 AM
Cloudy Night
43°
Feels Like 36°
49
Humidity: 47%
UV Index: 0
Wind: 10 mph
4 AM
Cloudy Night
41°
Feels Like 34°
34
Humidity: 49%
UV Index: 0
Wind: 12 mph
5 AM
Cloudy Night
39°
Feels Like 30°
34
Humidity: 52%
UV Index: 0
Wind: 12 mph
6 AM
Cloudy Night
37°
Feels Like 28°
23
Humidity: 58%
UV Index: 0
Wind: 12 mph
7 AM
Cloudy Weather
43°
Feels Like 32°
3
Humidity: 48%
UV Index: 1
Wind: 14 mph
8 AM
Cloudy Weather
45°
Feels Like 37°
3
Humidity: 42%
UV Index: 1
Wind: 14 mph
9 AM
Sunny Weather
50°
Feels Like 45°
3
Humidity: 33%
UV Index: 2
Wind: 14 mph
10 AM
Sunny Weather
55°
Feels Like 52°
3
Humidity: 25%
UV Index: 3
Wind: 15 mph
11 AM
Cloudy Weather
57°
Feels Like 57°
3
Humidity: 20%
UV Index: 4
Wind: 15 mph
12 PM
Cloudy Weather
61°
Feels Like 61°
2
Humidity: 17%
UV Index: 4
Wind: 14 mph
1 PM
Cloudy Weather
63°
Feels Like 64°
0
Humidity: 15%
UV Index: 4
Wind: 12 mph
2 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 14%
UV Index: 3
Wind: 10 mph
3 PM
Sunny Weather
64°
Feels Like 63°
0
Humidity: 14%
UV Index: 2
Wind: 12 mph
4 PM
Sunny Weather
63°
Feels Like 61°
0
Humidity: 14%
UV Index: 1
Wind: 10 mph
5 PM
Cloudy Weather
59°
Feels Like 55°
0
Humidity: 16%
UV Index: 1
Wind: 10 mph
6 PM
Cloudy Night
55°
Feels Like 52°
0
Humidity: 19%
UV Index: 0
Wind: 9 mph
7 PM
Cloudy Night
52°
Feels Like 46°
0
Humidity: 23%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 27%
UV Index: 0
Wind: 8 mph
9 PM
Night
45°
Feels Like 43°
0
Humidity: 31%
UV Index: 0
Wind: 7 mph
10 PM
Night
43°
Feels Like 39°
0
Humidity: 34%
UV Index: 0
Wind: 7 mph
11 PM
Night
41°
Feels Like 37°
0
Humidity: 37%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.51 µg/m³
  • PM10: 0.64 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 AM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.62 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 AM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.59 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.56 µg/m³
  • O3: 0.031 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.52 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.52 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.55 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.51 µg/m³
  • PM10: 0.6 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.55 µg/m³
  • PM10: 0.67 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 0.78 µg/m³
  • O3: 0.043 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.64 µg/m³
  • PM10: 0.87 µg/m³
  • O3: 0.042 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.67 µg/m³
  • PM10: 0.94 µg/m³
  • O3: 0.041 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.71 µg/m³
  • PM10: 1.01 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Fort Collins

Severe Future Possible

Fire Weather Watch

Fire Weather Watch issued February 25 at 6:08PM MST until February 26 at 5:00PM MST by NWS Denver CO
Feb 26, 11:00 AM → Feb 26, 5:00 PM
* AFFECTED AREA...Fire Weather Zones 238, 239, 240, 242, 243,
244, 245, 246, 248, 249, 250 and 251.

* TIMING...From Thursday morning through Thursday afternoon.

* WINDS...Northwest 15 to 25 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...As low as 14 percent.

IMPACTS: Conditions will be favorable for rapid fire spread.
Avoid outdoor burning and any activity that may produce a
spark and start a wildfire.
+ Read More
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Updated: Feb 26, 1:10 AM Source: NWS Alert