Hourly Weather | Today Sunday, December 14, 2025
Ann Arbor, Michigan
9 AM
Cloudy Weather
Feels Like -15°
16
Humidity: 77%
Wind: 17 mph
UV Index: 1
10 AM
Cloudy Weather
Feels Like -15°
34
Humidity: 82%
Wind: 18 mph
UV Index: 1
11 AM
Cloudy Weather
12°
Feels Like -11°
37
Humidity: 80%
Wind: 20 mph
UV Index: 1
12 PM
Snowy Weather
16°
Feels Like -9°
40
Humidity: 78%
Wind: 21 mph
UV Index: 1
1 PM
Cloudy Weather
18°
Feels Like -6°
36
Humidity: 76%
Wind: 21 mph
UV Index: 1
2 PM
Cloudy Weather
18°
Feels Like -2°
32
Humidity: 76%
Wind: 20 mph
UV Index: 1
3 PM
Cloudy Weather
19°
Feels Like
32
Humidity: 73%
Wind: 18 mph
UV Index: 1
4 PM
Cloudy Weather
19°
Feels Like
37
Humidity: 79%
Wind: 16 mph
UV Index: 0
5 PM
Snowy Weather
18°
Feels Like
40
Humidity: 83%
Wind: 15 mph
UV Index: 0
6 PM
Cloudy Night
18°
Feels Like
37
Humidity: 86%
Wind: 13 mph
UV Index: 0
7 PM
Cloudy Night
16°
Feels Like
0
Humidity: 86%
Wind: 8 mph
UV Index: 0
8 PM
Cloudy Night
16°
Feels Like
0
Humidity: 86%
Wind: 8 mph
UV Index: 0
9 PM
Cloudy Night
16°
Feels Like
0
Humidity: 88%
Wind: 8 mph
UV Index: 0
10 PM
Cloudy Night
14°
Feels Like
0
Humidity: 89%
Wind: 8 mph
UV Index: 0
11 PM
Cloudy Night
12°
Feels Like
0
Humidity: 90%
Wind: 8 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 1.21 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.95 µg/m³
  • PM10: 1.22 µg/m³
  • O3: 0.037 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.01 µg/m³
  • PM10: 1.3 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.14 µg/m³
  • PM10: 1.45 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.3 µg/m³
  • PM10: 1.62 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.38 µg/m³
  • PM10: 1.7 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 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: 1.46 µg/m³
  • PM10: 1.79 µg/m³
  • O3: 0.035 ppm
  • NO2: 2.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 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: 1.45 µg/m³
  • PM10: 1.79 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.41 µg/m³
  • PM10: 1.77 µg/m³
  • O3: 0.033 ppm
  • NO2: 4.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.5 µg/m³
  • PM10: 1.9 µg/m³
  • O3: 0.033 ppm
  • NO2: 4.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 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: 1.75 µg/m³
  • PM10: 2.22 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.12 µg/m³
  • PM10: 2.69 µg/m³
  • O3: 0.032 ppm
  • NO2: 5 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.69 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.031 ppm
  • NO2: 5.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 4.21 µg/m³
  • O3: 0.031 ppm
  • NO2: 5.6 ppb
  • SO2: 1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.17 µg/m³
  • PM10: 5.18 µg/m³
  • O3: 0.030 ppm
  • NO2: 6 ppb
  • SO2: 1.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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