Hourly Weather | Today Saturday, September 19, 2026
St. Paul, Minnesota
2 AM
Rainy Weather
57°
Feels Like 52°
57
Humidity: 95%
UV Index: 0
Wind: 10 mph
3 AM
Cloudy Weather
57°
Feels Like 54°
49
Humidity: 95%
UV Index: 0
Wind: 9 mph
4 AM
Rainy Weather
57°
Feels Like 52°
66
Humidity: 95%
UV Index: 0
Wind: 9 mph
5 AM
Rainy Weather
57°
Feels Like 52°
81
Humidity: 95%
UV Index: 0
Wind: 8 mph
6 AM
Rainy Weather
57°
Feels Like 52°
76
Humidity: 97%
UV Index: 0
Wind: 8 mph
7 AM
Rainy Weather
57°
Feels Like 52°
76
Humidity: 96%
UV Index: 0
Wind: 8 mph
8 AM
Cloudy Weather
57°
Feels Like 55°
49
Humidity: 96%
UV Index: 0
Wind: 8 mph
9 AM
Rainy Weather
57°
Feels Like 54°
60
Humidity: 97%
UV Index: 0
Wind: 8 mph
10 AM
Rainy Weather
59°
Feels Like 54°
60
Humidity: 96%
UV Index: 1
Wind: 8 mph
11 AM
Cloudy Weather
59°
Feels Like 57°
49
Humidity: 94%
UV Index: 1
Wind: 8 mph
12 PM
Cloudy Weather
61°
Feels Like 59°
48
Humidity: 93%
UV Index: 1
Wind: 8 mph
1 PM
Rainy Weather
61°
Feels Like 57°
52
Humidity: 91%
UV Index: 1
Wind: 9 mph
2 PM
Cloudy Weather
61°
Feels Like 61°
25
Humidity: 90%
UV Index: 1
Wind: 9 mph
3 PM
Cloudy Weather
63°
Feels Like 61°
20
Humidity: 90%
UV Index: 1
Wind: 9 mph
4 PM
Cloudy Weather
63°
Feels Like 61°
20
Humidity: 87%
UV Index: 1
Wind: 9 mph
5 PM
Cloudy Weather
63°
Feels Like 61°
20
Humidity: 89%
UV Index: 0
Wind: 8 mph
6 PM
Cloudy Weather
63°
Feels Like 59°
20
Humidity: 89%
UV Index: 0
Wind: 8 mph
7 PM
Cloudy Weather
61°
Feels Like 59°
15
Humidity: 90%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Weather
61°
Feels Like 57°
6
Humidity: 92%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
59°
Feels Like 55°
6
Humidity: 93%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Weather
57°
Feels Like 55°
6
Humidity: 95%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
57°
Feels Like 55°
6
Humidity: 96%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
25 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.05 µg/m³
  • PM10: 6.23 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.6 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 AM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.41 µg/m³
  • PM10: 6.62 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.6 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 AM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.54 µg/m³
  • PM10: 6.78 µg/m³
  • O3: 0.017 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

5 AM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.41 µg/m³
  • PM10: 6.67 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

6 AM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.13 µg/m³
  • PM10: 6.39 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.7 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

7 AM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.83 µg/m³
  • PM10: 6.1 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

8 AM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.27 µg/m³
  • PM10: 5.5 µg/m³
  • O3: 0.015 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

9 AM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.59 µg/m³
  • PM10: 4.83 µg/m³
  • O3: 0.014 ppm
  • NO2: 2.2 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

10 AM
16 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.77 µg/m³
  • PM10: 4.03 µg/m³
  • O3: 0.013 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.88 µg/m³
  • PM10: 3.11 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.21 µg/m³
  • PM10: 2.44 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.75 µg/m³
  • PM10: 1.98 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.53 µg/m³
  • PM10: 1.74 µg/m³
  • O3: 0.019 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 1.63 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.6 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
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.39 µg/m³
  • PM10: 1.61 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.7 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
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.38 µg/m³
  • PM10: 1.59 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 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: 1.38 µg/m³
  • PM10: 1.56 µg/m³
  • O3: 0.023 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.

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

Pollutant Concentrations:

  • PM2.5: 1.37 µg/m³
  • PM10: 1.53 µg/m³
  • O3: 0.024 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.

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

Pollutant Concentrations:

  • PM2.5: 1.34 µg/m³
  • PM10: 1.5 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.3 µg/m³
  • PM10: 1.46 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.28 µg/m³
  • PM10: 1.45 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.25 µg/m³
  • PM10: 1.42 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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