Hourly Weather | Today Friday, September 18, 2026
Springfield, Illinois
6 AM
Stormy Weather
72°
Feels Like 70°
54
Humidity: 91%
UV Index: 0
Wind: 7 mph
7 AM
Cloudy Weather
70°
Feels Like 72°
46
Humidity: 93%
UV Index: 0
Wind: 7 mph
8 AM
Sunny with a Chance of Thunderstorms
73°
Feels Like 73°
51
Humidity: 90%
UV Index: 1
Wind: 7 mph
9 AM
Cloudy Weather
75°
Feels Like 81°
47
Humidity: 86%
UV Index: 2
Wind: 7 mph
10 AM
Cloudy Weather
77°
Feels Like 84°
40
Humidity: 79%
UV Index: 3
Wind: 7 mph
11 AM
Cloudy Weather
81°
Feels Like 88°
33
Humidity: 73%
UV Index: 4
Wind: 7 mph
12 PM
Cloudy Weather
82°
Feels Like 91°
33
Humidity: 67%
UV Index: 5
Wind: 7 mph
1 PM
Cloudy Weather
84°
Feels Like 95°
39
Humidity: 62%
UV Index: 5
Wind: 7 mph
2 PM
Sunny with a Chance of Thunderstorms
86°
Feels Like 93°
51
Humidity: 62%
UV Index: 5
Wind: 7 mph
3 PM
Cloudy Weather
88°
Feels Like 97°
47
Humidity: 57%
UV Index: 4
Wind: 7 mph
4 PM
Cloudy Weather
90°
Feels Like 97°
40
Humidity: 56%
UV Index: 3
Wind: 8 mph
5 PM
Cloudy Weather
88°
Feels Like 93°
34
Humidity: 60%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
86°
Feels Like 91°
34
Humidity: 63%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
82°
Feels Like 88°
27
Humidity: 70%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
81°
Feels Like 84°
15
Humidity: 78%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
79°
Feels Like 81°
15
Humidity: 83%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
77°
Feels Like 81°
15
Humidity: 83%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
75°
Feels Like 81°
15
Humidity: 85%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.29 µg/m³
  • PM10: 9.3 µg/m³
  • O3: 0.013 ppm
  • NO2: 4.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

7 AM
36 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.76 µg/m³
  • PM10: 9.8 µg/m³
  • O3: 0.012 ppm
  • NO2: 4.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

8 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.08 µg/m³
  • PM10: 10.21 µg/m³
  • O3: 0.012 ppm
  • NO2: 5.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

9 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.25 µg/m³
  • PM10: 10.45 µg/m³
  • O3: 0.013 ppm
  • NO2: 4.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

10 AM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.57 µg/m³
  • PM10: 10.77 µg/m³
  • O3: 0.017 ppm
  • NO2: 3.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.11 µg/m³
  • PM10: 12.22 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.1 ppb
  • SO2: 1.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.05 µg/m³
  • PM10: 15.2 µg/m³
  • O3: 0.046 ppm
  • NO2: 2.3 ppb
  • SO2: 2.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 17.72 µg/m³
  • PM10: 18.9 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.7 ppb
  • SO2: 2.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

2 PM
70 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 17.67 µg/m³
  • PM10: 18.72 µg/m³
  • O3: 0.060 ppm
  • NO2: 1.4 ppb
  • SO2: 2.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

3 PM
65 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 16.25 µg/m³
  • PM10: 17.18 µg/m³
  • O3: 0.059 ppm
  • NO2: 1.5 ppb
  • SO2: 1.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

4 PM
61 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 15.28 µg/m³
  • PM10: 16.16 µg/m³
  • O3: 0.057 ppm
  • NO2: 2 ppb
  • SO2: 1.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.23 µg/m³
  • PM10: 16.15 µg/m³
  • O3: 0.051 ppm
  • NO2: 4 ppb
  • SO2: 1.6 ppb
  • CO: 0.16 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: 15.79 µg/m³
  • PM10: 16.83 µg/m³
  • O3: 0.040 ppm
  • NO2: 6.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.95 µg/m³
  • PM10: 17.11 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.5 ppb
  • SO2: 1.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.46 µg/m³
  • PM10: 16.67 µg/m³
  • O3: 0.028 ppm
  • NO2: 8.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.87 µg/m³
  • PM10: 16.12 µg/m³
  • O3: 0.026 ppm
  • NO2: 7.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.98 µg/m³
  • PM10: 15.21 µg/m³
  • O3: 0.026 ppm
  • NO2: 6.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.91 µg/m³
  • PM10: 14.05 µg/m³
  • O3: 0.027 ppm
  • NO2: 5.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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