Hourly Weather | Today Wednesday, December 24, 2025
Janesville, Wisconsin
2 PM
Cloudy Weather
39°
Feels Like 34°
19
Humidity: 67%
Wind: 8 mph
UV Index: 1
3 PM
Cloudy Weather
39°
Feels Like 34°
24
Humidity: 70%
Wind: 7 mph
UV Index: 0
4 PM
Cloudy Weather
39°
Feels Like 36°
40
Humidity: 67%
Wind: 7 mph
UV Index: 0
5 PM
Rainy Weather
39°
Feels Like 36°
44
Humidity: 66%
Wind: 6 mph
UV Index: 0
6 PM
Rainy Weather
41°
Feels Like 37°
44
Humidity: 65%
Wind: 5 mph
UV Index: 0
7 PM
Rainy Weather
39°
Feels Like 36°
48
Humidity: 77%
Wind: 5 mph
UV Index: 0
8 PM
Rainy Weather
37°
Feels Like 36°
48
Humidity: 81%
Wind: 4 mph
UV Index: 0
9 PM
Cloudy Weather
37°
Feels Like 37°
44
Humidity: 86%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Weather
36°
Feels Like 37°
34
Humidity: 89%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Weather
36°
Feels Like 37°
34
Humidity: 91%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 13.06 µg/m³
  • PM10: 14.9 µg/m³
  • O3: 0.015 ppm
  • NO2: 13.8 ppb
  • SO2: 1 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13 µg/m³
  • PM10: 14.74 µg/m³
  • O3: 0.014 ppm
  • NO2: 13.6 ppb
  • SO2: 1 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

4 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.61 µg/m³
  • PM10: 15.1 µg/m³
  • O3: 0.013 ppm
  • NO2: 13.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.62 µg/m³
  • PM10: 15.79 µg/m³
  • O3: 0.011 ppm
  • NO2: 14.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.78 µg/m³
  • PM10: 16.74 µg/m³
  • O3: 0.010 ppm
  • NO2: 14.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 16.73 µg/m³
  • PM10: 17.6 µg/m³
  • O3: 0.008 ppm
  • NO2: 15 ppb
  • SO2: 0.3 ppb
  • CO: 0.30 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 17.45 µg/m³
  • PM10: 18.29 µg/m³
  • O3: 0.006 ppm
  • NO2: 15.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.32 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 17.96 µg/m³
  • PM10: 18.81 µg/m³
  • O3: 0.004 ppm
  • NO2: 16.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.33 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 18.31 µg/m³
  • PM10: 19.16 µg/m³
  • O3: 0.003 ppm
  • NO2: 17 ppb
  • SO2: 0.1 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 18.46 µg/m³
  • PM10: 19.29 µg/m³
  • O3: 0.002 ppm
  • NO2: 17.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.35 ppm

Health Recommendations:

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