Hourly Weather | Today Wednesday, March 18, 2026
Bismarck, North Dakota
9 AM
Cloudy Weather
32°
Feels Like 30°
0
Humidity: 95%
UV Index: 1
Wind: 7 mph
10 AM
Cloudy Weather
34°
Feels Like 34°
0
Humidity: 100%
UV Index: 2
Wind: 7 mph
11 AM
Cloudy Weather
39°
Feels Like 39°
0
Humidity: 90%
UV Index: 2
Wind: 8 mph
12 PM
Cloudy Weather
45°
Feels Like 43°
0
Humidity: 77%
UV Index: 2
Wind: 9 mph
1 PM
Cloudy Weather
52°
Feels Like 48°
0
Humidity: 68%
UV Index: 2
Wind: 10 mph
2 PM
Cloudy Weather
54°
Feels Like 52°
0
Humidity: 60%
UV Index: 2
Wind: 10 mph
3 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 54%
UV Index: 2
Wind: 10 mph
4 PM
Cloudy Weather
61°
Feels Like 57°
0
Humidity: 52%
UV Index: 1
Wind: 10 mph
5 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 50%
UV Index: 1
Wind: 9 mph
6 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 57%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
55°
Feels Like 54°
0
Humidity: 65%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
52°
Feels Like 48°
0
Humidity: 71%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 77%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
45°
Feels Like 41°
0
Humidity: 81%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
43°
Feels Like 37°
0
Humidity: 85%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.65 µg/m³
  • PM10: 2.11 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 2.07 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.59 µg/m³
  • PM10: 2.09 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.65 µg/m³
  • PM10: 2.33 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.72 µg/m³
  • PM10: 2.61 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.65 µg/m³
  • PM10: 2.55 µg/m³
  • O3: 0.049 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.

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

Pollutant Concentrations:

  • PM2.5: 0.53 µg/m³
  • PM10: 2.01 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.67 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.29 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.01 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.92 µg/m³
  • O3: 0.043 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.

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.04 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 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: 0.5 µg/m³
  • PM10: 1.2 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.52 µg/m³
  • PM10: 1.43 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.59 µg/m³
  • PM10: 1.6 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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