Hourly Weather | Today Tuesday, July 21, 2026
St. Paul, Minnesota
3 AM
Cloudy Night
72°
Feels Like 68°
0
Humidity: 71%
UV Index: 0
Wind: 13 mph
4 AM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 76%
UV Index: 0
Wind: 14 mph
5 AM
Cloudy Night
68°
Feels Like 64°
0
Humidity: 80%
UV Index: 0
Wind: 14 mph
6 AM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 84%
UV Index: 0
Wind: 13 mph
7 AM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 80%
UV Index: 1
Wind: 13 mph
8 AM
Cloudy Weather
70°
Feels Like 68°
0
Humidity: 74%
UV Index: 2
Wind: 13 mph
9 AM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 67%
UV Index: 3
Wind: 14 mph
10 AM
Cloudy Weather
72°
Feels Like 73°
0
Humidity: 62%
UV Index: 5
Wind: 15 mph
11 AM
Cloudy Weather
73°
Feels Like 75°
0
Humidity: 55%
UV Index: 6
Wind: 15 mph
12 PM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 49%
UV Index: 8
Wind: 15 mph
1 PM
Cloudy Weather
77°
Feels Like 81°
0
Humidity: 45%
UV Index: 9
Wind: 15 mph
2 PM
Cloudy Weather
79°
Feels Like 82°
0
Humidity: 42%
UV Index: 8
Wind: 15 mph
3 PM
Cloudy Weather
81°
Feels Like 81°
0
Humidity: 40%
UV Index: 6
Wind: 15 mph
4 PM
Cloudy Weather
81°
Feels Like 81°
0
Humidity: 37%
UV Index: 5
Wind: 15 mph
5 PM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 38%
UV Index: 3
Wind: 15 mph
6 PM
Cloudy Weather
79°
Feels Like 77°
0
Humidity: 39%
UV Index: 2
Wind: 14 mph
7 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 41%
UV Index: 1
Wind: 14 mph
8 PM
Sunny Weather
75°
Feels Like 73°
0
Humidity: 42%
UV Index: 0
Wind: 12 mph
9 PM
Night
73°
Feels Like 70°
0
Humidity: 46%
UV Index: 0
Wind: 10 mph
10 PM
Night
70°
Feels Like 66°
0
Humidity: 52%
UV Index: 0
Wind: 8 mph
11 PM
Night
66°
Feels Like 64°
0
Humidity: 57%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 7.63 µg/m³
  • PM10: 7.81 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.07 µg/m³
  • PM10: 5.21 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.79 µg/m³
  • PM10: 2.89 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.58 µg/m³
  • PM10: 1.66 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.94 µg/m³
  • PM10: 1.01 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 0.66 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.7 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 AM
18 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.018 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 0.65 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.85 µg/m³
  • PM10: 0.9 µg/m³
  • O3: 0.031 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.08 µg/m³
  • PM10: 1.13 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.23 µg/m³
  • PM10: 1.28 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.31 µg/m³
  • PM10: 1.36 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.35 µg/m³
  • PM10: 1.42 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.34 µg/m³
  • PM10: 1.41 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.31 µg/m³
  • PM10: 1.4 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.32 µg/m³
  • PM10: 1.43 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.8 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.34 µg/m³
  • PM10: 1.48 µg/m³
  • O3: 0.031 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.36 µg/m³
  • PM10: 1.53 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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