Hourly Weather | Today › Sunday, October 25, 2026
Grand Rapids, Michigan
9 AM
Cloudy Weather
45°
Feels Like 43°
0
Humidity: 100%
UV Index: 1
Wind: 6 mph
10 AM
Cloudy Weather
50°
Feels Like 50°
0
Humidity: 89%
UV Index: 1
Wind: 6 mph
11 AM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 77%
UV Index: 1
Wind: 7 mph
12 PM
Cloudy Weather
61°
Feels Like 63°
0
Humidity: 67%
UV Index: 2
Wind: 7 mph
1 PM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 59%
UV Index: 3
Wind: 8 mph
2 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 54%
UV Index: 3
Wind: 8 mph
3 PM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 50%
UV Index: 2
Wind: 8 mph
4 PM
Cloudy Weather
72°
Feels Like 72°
0
Humidity: 47%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
70°
Feels Like 68°
0
Humidity: 51%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 56%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 64%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
61°
Feels Like 59°
0
Humidity: 71%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 79%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 85%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 86%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.29 µg/m³
  • PM10: 18.52 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 AM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.63 µg/m³
  • PM10: 17.96 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 AM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.95 µg/m³
  • PM10: 17.39 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.56 µg/m³
  • PM10: 17.13 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.61 µg/m³
  • PM10: 17.28 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

2 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.17 µg/m³
  • PM10: 17.92 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.4 ppb
  • SO2: 1.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
62 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.5 µg/m³
  • PM10: 19.18 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.6 ppb
  • SO2: 2.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
71 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 17.72 µg/m³
  • PM10: 19.28 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.4 ppb
  • SO2: 2.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
71 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 17.73 µg/m³
  • PM10: 19.26 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.5 ppb
  • SO2: 2 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.02 µg/m³
  • PM10: 19.6 µg/m³
  • O3: 0.055 ppm
  • NO2: 2.6 ppb
  • SO2: 1.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.41 µg/m³
  • PM10: 20.06 µg/m³
  • O3: 0.046 ppm
  • NO2: 4.8 ppb
  • SO2: 1 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.74 µg/m³
  • PM10: 20.48 µg/m³
  • O3: 0.038 ppm
  • NO2: 6.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.74 µg/m³
  • PM10: 20.58 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
65 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.81 µg/m³
  • PM10: 20.73 µg/m³
  • O3: 0.029 ppm
  • NO2: 7.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
65 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.89 µg/m³
  • PM10: 20.8 µg/m³
  • O3: 0.028 ppm
  • NO2: 7.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.