Hourly Weather | Today Thursday, February 5, 2026
Longmont, Colorado
8 PM
Night
48°
Feels Like 45°
0
Humidity: 37%
UV Index: 0
Wind: 7 mph
9 PM
Night
45°
Feels Like 41°
0
Humidity: 45%
UV Index: 0
Wind: 7 mph
10 PM
Night
41°
Feels Like 39°
0
Humidity: 54%
UV Index: 0
Wind: 6 mph
11 PM
Night
37°
Feels Like 36°
0
Humidity: 60%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.6 µg/m³
  • PM10: 1.74 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.85 µg/m³
  • PM10: 2.01 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.12 µg/m³
  • PM10: 2.3 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.46 µg/m³
  • PM10: 2.64 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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