Hourly Weather | Today Sunday, December 14, 2025
Grand Rapids, Michigan
9 AM
Snowy Weather
Feels Like -8°
42
Humidity: 92%
Wind: 12 mph
UV Index: 0
10 AM
Cloudy Weather
10°
Feels Like -6°
38
Humidity: 94%
Wind: 13 mph
UV Index: 0
11 AM
Cloudy Weather
14°
Feels Like -2°
38
Humidity: 89%
Wind: 14 mph
UV Index: 0
12 PM
Snowy Weather
18°
Feels Like
42
Humidity: 85%
Wind: 15 mph
UV Index: 0
1 PM
Snowy Weather
19°
Feels Like
57
Humidity: 82%
Wind: 15 mph
UV Index: 0
2 PM
Cloudy Weather
19°
Feels Like
47
Humidity: 81%
Wind: 14 mph
UV Index: 0
3 PM
Cloudy Weather
21°
Feels Like
40
Humidity: 77%
Wind: 13 mph
UV Index: 0
4 PM
Cloudy Weather
19°
Feels Like
40
Humidity: 85%
Wind: 12 mph
UV Index: 0
5 PM
Cloudy Weather
18°
Feels Like
47
Humidity: 92%
Wind: 10 mph
UV Index: 0
6 PM
Snowy Weather
16°
Feels Like
57
Humidity: 94%
Wind: 8 mph
UV Index: 0
7 PM
Cloudy Weather
14°
Feels Like
1
Humidity: 100%
Wind: 7 mph
UV Index: 0
8 PM
Cloudy Weather
12°
Feels Like
0
Humidity: 100%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Weather
14°
Feels Like
0
Humidity: 100%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Weather
12°
Feels Like
0
Humidity: 100%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Weather
12°
Feels Like
0
Humidity: 100%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.74 µg/m³
  • PM10: 0.88 µg/m³
  • O3: 0.035 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.78 µg/m³
  • PM10: 0.94 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 1.09 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.02 µg/m³
  • PM10: 1.28 µg/m³
  • O3: 0.035 ppm
  • NO2: 2.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.19 µg/m³
  • PM10: 1.48 µg/m³
  • O3: 0.036 ppm
  • NO2: 3 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 1.81 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 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: 1.77 µg/m³
  • PM10: 2.3 µg/m³
  • O3: 0.035 ppm
  • NO2: 4 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.1 µg/m³
  • PM10: 2.72 µg/m³
  • O3: 0.035 ppm
  • NO2: 4.8 ppb
  • SO2: 1.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.35 µg/m³
  • PM10: 3.06 µg/m³
  • O3: 0.034 ppm
  • NO2: 5.6 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 3.44 µg/m³
  • O3: 0.034 ppm
  • NO2: 6.3 ppb
  • SO2: 1.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.91 µg/m³
  • PM10: 3.81 µg/m³
  • O3: 0.033 ppm
  • NO2: 6.9 ppb
  • SO2: 1.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.2 µg/m³
  • PM10: 4.2 µg/m³
  • O3: 0.031 ppm
  • NO2: 7.6 ppb
  • SO2: 1.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.65 µg/m³
  • PM10: 4.75 µg/m³
  • O3: 0.030 ppm
  • NO2: 8.6 ppb
  • SO2: 1.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.13 µg/m³
  • PM10: 5.3 µg/m³
  • O3: 0.028 ppm
  • NO2: 9.6 ppb
  • SO2: 1.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.51 µg/m³
  • PM10: 5.63 µg/m³
  • O3: 0.026 ppm
  • NO2: 10.2 ppb
  • SO2: 2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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