Hourly Weather | Today Monday, September 21, 2026
Bismarck, North Dakota
2 PM
Cloudy Weather
64°
Feels Like 68°
0
Humidity: 51%
UV Index: 3
Wind: 8 mph
3 PM
Cloudy Weather
66°
Feels Like 68°
0
Humidity: 48%
UV Index: 3
Wind: 8 mph
4 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 45%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 45%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 48%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
63°
Feels Like 59°
0
Humidity: 51%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Night
59°
Feels Like 55°
0
Humidity: 63%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 73%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
54°
Feels Like 50°
0
Humidity: 80%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 88%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.72 µg/m³
  • PM10: 0.77 µg/m³
  • O3: 0.034 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.

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

Pollutant Concentrations:

  • PM2.5: 0.74 µg/m³
  • PM10: 0.79 µg/m³
  • O3: 0.036 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.

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

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.037 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.

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

Pollutant Concentrations:

  • PM2.5: 0.84 µg/m³
  • PM10: 0.91 µg/m³
  • O3: 0.038 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.

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

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 0.95 µg/m³
  • O3: 0.038 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.

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

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 0.95 µg/m³
  • O3: 0.038 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.

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

Pollutant Concentrations:

  • PM2.5: 0.87 µg/m³
  • PM10: 0.94 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.85 µg/m³
  • PM10: 0.93 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.8 µg/m³
  • PM10: 0.88 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.73 µg/m³
  • PM10: 0.81 µg/m³
  • O3: 0.031 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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