Hourly Weather | Today Thursday, February 26, 2026
Elgin, Illinois
4 AM
Cloudy Night
21°
Feels Like
0
Frost Risk: 95%
Humidity: 62%
UV Index: 0
Wind: 14 mph
5 AM
Cloudy Night
21°
Feels Like
0
Frost Risk: 96%
Humidity: 62%
UV Index: 0
Wind: 14 mph
6 AM
Cloudy Night
21°
Feels Like
0
Frost Risk: 95%
Humidity: 63%
UV Index: 0
Wind: 14 mph
7 AM
Cloudy Weather
19°
Feels Like 19°
0
Frost Risk: 100%
Humidity: 74%
UV Index: 0
Wind: 5 mph
8 AM
Cloudy Weather
21°
Feels Like 21°
0
Frost Risk: 97%
Humidity: 67%
UV Index: 1
Wind: 5 mph
9 AM
Cloudy Weather
27°
Feels Like 28°
0
Humidity: 57%
UV Index: 1
Wind: 5 mph
10 AM
Cloudy Weather
32°
Feels Like 30°
0
Humidity: 49%
UV Index: 2
Wind: 7 mph
11 AM
Cloudy Weather
36°
Feels Like 34°
0
Humidity: 46%
UV Index: 2
Wind: 8 mph
12 PM
Cloudy Weather
37°
Feels Like 34°
0
Humidity: 44%
UV Index: 2
Wind: 9 mph
1 PM
Cloudy Weather
39°
Feels Like 36°
0
Humidity: 44%
UV Index: 2
Wind: 12 mph
2 PM
Cloudy Weather
43°
Feels Like 36°
0
Humidity: 44%
UV Index: 2
Wind: 13 mph
3 PM
Cloudy Weather
45°
Feels Like 37°
0
Humidity: 45%
UV Index: 1
Wind: 13 mph
4 PM
Cloudy Weather
43°
Feels Like 36°
0
Humidity: 51%
UV Index: 1
Wind: 12 mph
5 PM
Cloudy Weather
41°
Feels Like 34°
0
Humidity: 59%
UV Index: 0
Wind: 9 mph
6 PM
Night
37°
Feels Like 32°
0
Humidity: 69%
UV Index: 0
Wind: 8 mph
7 PM
Night
36°
Feels Like 30°
0
Humidity: 73%
UV Index: 0
Wind: 8 mph
8 PM
Night
36°
Feels Like 28°
0
Humidity: 77%
UV Index: 0
Wind: 8 mph
9 PM
Night
36°
Feels Like 28°
0
Humidity: 77%
UV Index: 0
Wind: 8 mph
10 PM
Night
34°
Feels Like 27°
0
Humidity: 82%
UV Index: 0
Wind: 8 mph
11 PM
Night
32°
Feels Like 27°
0
Frost Risk: 55%
Humidity: 84%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.95 µg/m³
  • PM10: 4.46 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

5 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.22 µg/m³
  • PM10: 4.75 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.61 µg/m³
  • PM10: 5.19 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

7 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.2 µg/m³
  • PM10: 5.94 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.89 µg/m³
  • PM10: 6.86 µg/m³
  • O3: 0.033 ppm
  • NO2: 5.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.4 µg/m³
  • PM10: 7.58 µg/m³
  • O3: 0.032 ppm
  • NO2: 6.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.88 µg/m³
  • PM10: 7.06 µg/m³
  • O3: 0.036 ppm
  • NO2: 6.1 ppb
  • SO2: 1.4 ppb
  • CO: 0.19 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: 5.32 µg/m³
  • PM10: 6.38 µg/m³
  • O3: 0.037 ppm
  • NO2: 5 ppb
  • SO2: 1.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.84 µg/m³
  • PM10: 5.75 µg/m³
  • O3: 0.038 ppm
  • NO2: 4.1 ppb
  • SO2: 1.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.7 µg/m³
  • PM10: 4.41 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.1 ppb
  • SO2: 1.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 3.5 µg/m³
  • O3: 0.047 ppm
  • NO2: 2.6 ppb
  • SO2: 1.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.44 µg/m³
  • PM10: 3 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.5 ppb
  • SO2: 1.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.64 µg/m³
  • PM10: 3.25 µg/m³
  • O3: 0.047 ppm
  • NO2: 3.2 ppb
  • SO2: 1.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 4.06 µg/m³
  • O3: 0.041 ppm
  • NO2: 5.6 ppb
  • SO2: 1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.12 µg/m³
  • PM10: 4.94 µg/m³
  • O3: 0.035 ppm
  • NO2: 8.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.20 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: 4.82 µg/m³
  • PM10: 5.75 µg/m³
  • O3: 0.032 ppm
  • NO2: 9.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.41 µg/m³
  • PM10: 6.37 µg/m³
  • O3: 0.031 ppm
  • NO2: 9 ppb
  • SO2: 0.4 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.84 µg/m³
  • PM10: 6.75 µg/m³
  • O3: 0.033 ppm
  • NO2: 7.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.18 µg/m³
  • PM10: 7.05 µg/m³
  • O3: 0.034 ppm
  • NO2: 6.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.67 µg/m³
  • PM10: 7.52 µg/m³
  • O3: 0.034 ppm
  • NO2: 5.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

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