Hourly Weather | Today Monday, April 27, 2026
Active Weather Warnings
Champaign, Illinois
1 PM
Stormy Weather
63°
Feels Like 54°
78
Humidity: 92%
UV Index: 2
Wind: 21 mph
2 PM
Cloudy Weather
63°
Feels Like 59°
49
Humidity: 91%
UV Index: 2
Wind: 21 mph
3 PM
Cloudy Weather
64°
Feels Like 61°
49
Humidity: 89%
UV Index: 2
Wind: 22 mph
4 PM
Stormy Weather
66°
Feels Like 57°
66
Humidity: 86%
UV Index: 1
Wind: 22 mph
5 PM
Cloudy Weather
66°
Feels Like 63°
49
Humidity: 84%
UV Index: 1
Wind: 22 mph
6 PM
Cloudy Weather
68°
Feels Like 64°
49
Humidity: 82%
UV Index: 1
Wind: 21 mph
7 PM
Stormy Weather
70°
Feels Like 61°
61
Humidity: 79%
UV Index: 0
Wind: 20 mph
8 PM
Stormy Weather
68°
Feels Like 59°
56
Humidity: 82%
UV Index: 0
Wind: 18 mph
9 PM
Cloudy Weather
66°
Feels Like 63°
49
Humidity: 86%
UV Index: 0
Wind: 16 mph
10 PM
Cloudy Weather
64°
Feels Like 61°
44
Humidity: 89%
UV Index: 0
Wind: 14 mph
11 PM
Cloudy Weather
64°
Feels Like 61°
34
Humidity: 90%
UV Index: 0
Wind: 13 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.91 µg/m³
  • PM10: 3.19 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 3.55 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

3 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.01 µg/m³
  • PM10: 3.18 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 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: 2.25 µg/m³
  • PM10: 2.36 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 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: 1.9 µg/m³
  • PM10: 1.97 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.77 µg/m³
  • PM10: 1.82 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.88 µg/m³
  • PM10: 1.92 µg/m³
  • O3: 0.032 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.05 µg/m³
  • PM10: 2.09 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2 µg/m³
  • PM10: 2.05 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.66 µg/m³
  • PM10: 1.71 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.29 µg/m³
  • PM10: 1.35 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Champaign

Severe Future Possible

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued April 27 at 11:49AM CDT until April 27 at 4:00PM CDT by NWS Lincoln IL
Apr 27, 11:49 AM Apr 27, 4:00 PM
SEVERE THUNDERSTORM WATCH 158 REMAINS VALID UNTIL 4 PM CDT THIS
AFTERNOON FOR THE FOLLOWING AREAS

IN ILLINOIS THIS WATCH INCLUDES 22 COUNTIES

IN CENTRAL ILLINOIS

CHRISTIAN DE WITT LOGAN
MACON MCLEAN SANGAMON
SHELBY

IN EAST CENTRAL ILLINOIS

CHAMPAIGN CLARK COLES
CUMBERLAND DOUGLAS EDGAR
MOULTRIE PIATT VERMILION

IN SOUTHEAST ILLINOIS

CLAY CRAWFORD EFFINGHAM
JASPER LAWRENCE RICHLAND

THIS INCLUDES THE CITIES OF BLOOMINGTON, CHAMPAIGN, CHARLESTON,
CLINTON, DANVILLE, DECATUR, EFFINGHAM, FLORA, GREENUP,
LAWRENCEVILLE, LINCOLN, MARSHALL, MATTOON, MONTICELLO, NEWTON,
NORMAL, OLNEY, PARIS, ROBINSON, SHELBYVILLE, SPRINGFIELD,
SULLIVAN, TAYLORVILLE, TUSCOLA, AND URBANA.
Updated: Apr 27, 12:17 PM Source: NWS Alert