Hourly Weather | Today Wednesday, May 20, 2026
Bismarck, North Dakota
6 PM
Cloudy Weather
68°
Feels Like 66°
38
Humidity: 31%
UV Index: 2
Wind: 18 mph
7 PM
Partly Sunny with Showers
66°
Feels Like 63°
42
Humidity: 34%
UV Index: 1
Wind: 18 mph
8 PM
Cloudy Weather
66°
Feels Like 63°
11
Humidity: 36%
UV Index: 0
Wind: 18 mph
9 PM
Cloudy Weather
63°
Feels Like 57°
7
Humidity: 44%
UV Index: 0
Wind: 16 mph
10 PM
Cloudy Night
61°
Feels Like 54°
7
Humidity: 53%
UV Index: 0
Wind: 14 mph
11 PM
Cloudy Night
57°
Feels Like 52°
7
Humidity: 60%
UV Index: 0
Wind: 14 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.75 µg/m³
  • PM10: 0.87 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.56 µg/m³
  • PM10: 0.6 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.51 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.51 µg/m³
  • PM10: 0.55 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 0.65 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 0.75 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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