Hourly Weather | Today Monday, September 21, 2026
St. Cloud, Minnesota
2 PM
Rainy Weather
55°
Feels Like 55°
45
Humidity: 58%
UV Index: 1
Wind: 6 mph
3 PM
Cloudy Weather
57°
Feels Like 57°
41
Humidity: 60%
UV Index: 1
Wind: 6 mph
4 PM
Cloudy Weather
55°
Feels Like 57°
36
Humidity: 63%
UV Index: 1
Wind: 6 mph
5 PM
Cloudy Weather
57°
Feels Like 57°
34
Humidity: 64%
UV Index: 1
Wind: 6 mph
6 PM
Cloudy Weather
55°
Feels Like 55°
34
Humidity: 67%
UV Index: 0
Wind: 5 mph
7 PM
Cloudy Weather
55°
Feels Like 55°
25
Humidity: 71%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
54°
Feels Like 54°
9
Humidity: 80%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
50°
Feels Like 50°
9
Humidity: 87%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
48°
Feels Like 48°
9
Humidity: 93%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
48°
Feels Like 48°
9
Humidity: 91%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.7 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.022 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.78 µg/m³
  • PM10: 0.93 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 1.03 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.01 µg/m³
  • PM10: 1.18 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.17 µg/m³
  • PM10: 1.35 µg/m³
  • O3: 0.023 ppm
  • NO2: 3 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.29 µg/m³
  • PM10: 1.48 µg/m³
  • O3: 0.022 ppm
  • NO2: 3.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.4 µg/m³
  • PM10: 1.64 µg/m³
  • O3: 0.022 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.5 µg/m³
  • PM10: 1.82 µg/m³
  • O3: 0.022 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.55 µg/m³
  • PM10: 1.94 µg/m³
  • O3: 0.021 ppm
  • NO2: 3.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.55 µg/m³
  • PM10: 2.01 µg/m³
  • O3: 0.021 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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