Hourly Weather | Today Tuesday, September 1, 2026
Racine, Wisconsin
11 AM
Rainy Weather
84°
Feels Like 91°
44
Humidity: 72%
UV Index: 2
Wind: 7 mph
12 PM
Cloudy Weather
86°
Feels Like 99°
40
Humidity: 68%
UV Index: 6
Wind: 7 mph
1 PM
Cloudy Weather
88°
Feels Like 100°
36
Humidity: 65%
UV Index: 6
Wind: 7 mph
2 PM
Sunny Weather
88°
Feels Like 100°
34
Humidity: 64%
UV Index: 6
Wind: 7 mph
3 PM
Sunny Weather
88°
Feels Like 100°
34
Humidity: 63%
UV Index: 5
Wind: 7 mph
4 PM
Cloudy Weather
90°
Feels Like 100°
37
Humidity: 61%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
88°
Feels Like 99°
43
Humidity: 65%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
86°
Feels Like 95°
47
Humidity: 69%
UV Index: 1
Wind: 7 mph
7 PM
Partly Sunny with Showers
84°
Feels Like 90°
51
Humidity: 74%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
82°
Feels Like 88°
40
Humidity: 74%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
81°
Feels Like 86°
34
Humidity: 78%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
79°
Feels Like 82°
40
Humidity: 83%
UV Index: 0
Wind: 7 mph
11 PM
Stormy Weather
75°
Feels Like 79°
64
Humidity: 88%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11 µg/m³
  • PM10: 11.89 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.6 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
51 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.63 µg/m³
  • PM10: 13.52 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.28 µg/m³
  • PM10: 15.15 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.74 µg/m³
  • PM10: 10.31 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 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: 7.14 µg/m³
  • PM10: 7.56 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.5 µg/m³
  • PM10: 6.9 µg/m³
  • O3: 0.049 ppm
  • NO2: 1 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.76 µg/m³
  • PM10: 7.23 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.79 µg/m³
  • PM10: 8.38 µg/m³
  • O3: 0.046 ppm
  • NO2: 2.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.86 µg/m³
  • PM10: 9.56 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.5 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.65 µg/m³
  • PM10: 10.44 µg/m³
  • O3: 0.043 ppm
  • NO2: 3.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

9 PM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.11 µg/m³
  • PM10: 10.95 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

10 PM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.2 µg/m³
  • PM10: 11.06 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

11 PM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.99 µg/m³
  • PM10: 10.81 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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