Hourly Weather | Today Tuesday, September 9, 2025
Ann Arbor, Michigan
2 AM
Night
45°
Feels Like 45°
0
Humidity: 99%
Wind: 4 mph
UV Index: 0
3 AM
Night
45°
Feels Like 46°
0
Humidity: 100%
Wind: 4 mph
UV Index: 0
4 AM
Night
45°
Feels Like 45°
0
Humidity: 100%
Wind: 4 mph
UV Index: 0
5 AM
Night
45°
Feels Like 45°
0
Humidity: 100%
Wind: 4 mph
UV Index: 0
6 AM
Night
45°
Feels Like 45°
0
Humidity: 100%
Wind: 4 mph
UV Index: 0
7 AM
Night
45°
Feels Like 46°
0
Humidity: 100%
Wind: 4 mph
UV Index: 0
8 AM
Cloudy Weather
45°
Feels Like 46°
0
Humidity: 100%
Wind: 5 mph
UV Index: 12
9 AM
Cloudy Weather
50°
Feels Like 54°
0
Humidity: 93%
Wind: 5 mph
UV Index: 21
10 AM
Cloudy Weather
57°
Feels Like 63°
0
Humidity: 72%
Wind: 6 mph
UV Index: 32
11 AM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 55%
Wind: 6 mph
UV Index: 43
12 PM
Cloudy Weather
68°
Feels Like 73°
0
Humidity: 49%
Wind: 7 mph
UV Index: 51
1 PM
Cloudy Weather
72°
Feels Like 77°
0
Humidity: 43%
Wind: 7 mph
UV Index: 56
2 PM
Cloudy Weather
73°
Feels Like 79°
0
Humidity: 38%
Wind: 8 mph
UV Index: 51
3 PM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 35%
Wind: 7 mph
UV Index: 43
4 PM
Cloudy Weather
79°
Feels Like 79°
0
Humidity: 33%
Wind: 7 mph
UV Index: 32
5 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 35%
Wind: 7 mph
UV Index: 21
6 PM
Cloudy Weather
73°
Feels Like 73°
0
Humidity: 38%
Wind: 7 mph
UV Index: 12
7 PM
Cloudy Weather
70°
Feels Like 68°
0
Humidity: 45%
Wind: 7 mph
UV Index: 2
8 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 53%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 63%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
59°
Feels Like 57°
0
Humidity: 71%
Wind: 5 mph
UV Index: 0
11 PM
Cloudy Night
55°
Feels Like 55°
0
Humidity: 80%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
35 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.36 µg/m³
  • PM10: 18.98 µg/m³
  • O₃: 13.31 ppb
  • NO₂: 24.11 ppb
  • SO₂: 0.77 ppb
  • CO: 69.26 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

3 AM
36 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.51 µg/m³
  • PM10: 17.86 µg/m³
  • O₃: 14.88 ppb
  • NO₂: 22.46 ppb
  • SO₂: 0.80 ppb
  • CO: 82.96 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

4 AM
37 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.94 µg/m³
  • PM10: 15.74 µg/m³
  • O₃: 18.00 ppb
  • NO₂: 19.17 ppb
  • SO₂: 0.85 ppb
  • CO: 110.36 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

5 AM
38 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.67 µg/m³
  • PM10: 13.93 µg/m³
  • O₃: 21.45 ppb
  • NO₂: 15.54 ppb
  • SO₂: 0.90 ppb
  • CO: 134.54 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

6 AM
39 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.59 µg/m³
  • PM10: 13.59 µg/m³
  • O₃: 21.92 ppb
  • NO₂: 14.60 ppb
  • SO₂: 0.96 ppb
  • CO: 154.61 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

7 AM
40 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.79 µg/m³
  • PM10: 14.03 µg/m³
  • O₃: 21.68 ppb
  • NO₂: 14.37 ppb
  • SO₂: 1.01 ppb
  • CO: 169.62 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

8 AM
42 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 12.43 µg/m³
  • PM10: 15.15 µg/m³
  • O₃: 21.07 ppb
  • NO₂: 14.50 ppb
  • SO₂: 1.05 ppb
  • CO: 182.10 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

9 AM
44 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 12.60 µg/m³
  • PM10: 12.72 µg/m³
  • O₃: 28.80 ppb
  • NO₂: 9.39 ppb
  • SO₂: 1.30 ppb
  • CO: 207.20 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

10 AM
45 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.54 µg/m³
  • PM10: 8.71 µg/m³
  • O₃: 34.24 ppb
  • NO₂: 6.99 ppb
  • SO₂: 1.47 ppb
  • CO: 199.60 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

11 AM
46 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.42 µg/m³
  • PM10: 8.62 µg/m³
  • O₃: 39.68 ppb
  • NO₂: 4.59 ppb
  • SO₂: 1.64 ppb
  • CO: 191.99 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

12 PM
46 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.46 µg/m³
  • PM10: 7.66 µg/m³
  • O₃: 47.60 ppb
  • NO₂: 3.44 ppb
  • SO₂: 1.82 ppb
  • CO: 180.89 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

1 PM
46 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.73 µg/m³
  • PM10: 6.89 µg/m³
  • O₃: 55.52 ppb
  • NO₂: 2.29 ppb
  • SO₂: 2.01 ppb
  • CO: 169.79 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

2 PM
46 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.33 µg/m³
  • PM10: 7.47 µg/m³
  • O₃: 63.44 ppb
  • NO₂: 1.14 ppb
  • SO₂: 2.19 ppb
  • CO: 158.69 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

3 PM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.04 µg/m³
  • PM10: 8.17 µg/m³
  • O₃: 65.63 ppb
  • NO₂: 1.17 ppb
  • SO₂: 2.35 ppb
  • CO: 158.88 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

4 PM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.68 µg/m³
  • PM10: 8.82 µg/m³
  • O₃: 67.83 ppb
  • NO₂: 1.19 ppb
  • SO₂: 2.50 ppb
  • CO: 159.08 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

5 PM
52 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.28 µg/m³
  • PM10: 9.42 µg/m³
  • O₃: 70.02 ppb
  • NO₂: 1.22 ppb
  • SO₂: 2.66 ppb
  • CO: 159.27 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
65 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.84 µg/m³
  • PM10: 9.99 µg/m³
  • O₃: 64.59 ppb
  • NO₂: 3.49 ppb
  • SO₂: 2.71 ppb
  • CO: 177.11 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
72 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.86 µg/m³
  • PM10: 10.99 µg/m³
  • O₃: 59.15 ppb
  • NO₂: 5.77 ppb
  • SO₂: 2.76 ppb
  • CO: 194.95 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
75 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 12.63 µg/m³
  • PM10: 12.74 µg/m³
  • O₃: 53.72 ppb
  • NO₂: 8.04 ppb
  • SO₂: 2.81 ppb
  • CO: 212.79 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
73 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 13.25 µg/m³
  • PM10: 13.37 µg/m³
  • O₃: 51.72 ppb
  • NO₂: 7.96 ppb
  • SO₂: 2.88 ppb
  • CO: 210.84 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
68 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 13.20 µg/m³
  • PM10: 13.29 µg/m³
  • O₃: 49.71 ppb
  • NO₂: 7.88 ppb
  • SO₂: 2.94 ppb
  • CO: 208.89 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
60 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 12.98 µg/m³
  • PM10: 13.07 µg/m³
  • O₃: 47.71 ppb
  • NO₂: 7.80 ppb
  • SO₂: 3.01 ppb
  • CO: 206.94 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.