Hourly Weather | Today Wednesday, June 10, 2026
Longmont, Colorado
3 PM
Cloudy Weather
90°
Feels Like 91°
0
Humidity: 10%
UV Index: 8
Wind: 15 mph
4 PM
Cloudy Weather
91°
Feels Like 91°
0
Humidity: 9%
UV Index: 5
Wind: 16 mph
5 PM
Cloudy Weather
91°
Feels Like 90°
0
Humidity: 10%
UV Index: 4
Wind: 16 mph
6 PM
Cloudy Weather
90°
Feels Like 88°
0
Humidity: 10%
UV Index: 2
Wind: 16 mph
7 PM
Cloudy Weather
88°
Feels Like 84°
0
Humidity: 10%
UV Index: 1
Wind: 14 mph
8 PM
Cloudy Weather
82°
Feels Like 81°
0
Humidity: 13%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Night
79°
Feels Like 75°
0
Humidity: 15%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
75°
Feels Like 72°
0
Humidity: 18%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 21%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.22 µg/m³
  • PM10: 1.98 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.16 µg/m³
  • PM10: 1.84 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.15 µg/m³
  • PM10: 1.76 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.26 µg/m³
  • PM10: 1.82 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.51 µg/m³
  • PM10: 2.06 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.73 µg/m³
  • PM10: 2.29 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.85 µg/m³
  • PM10: 2.44 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.87 µg/m³
  • PM10: 2.44 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.91 µg/m³
  • PM10: 2.45 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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