Hourly Weather | Today Wednesday, March 18, 2026
Springfield, Illinois
12 PM
Cloudy Weather
46°
Feels Like 45°
0
Humidity: 58%
UV Index: 5
Wind: 12 mph
1 PM
Cloudy Weather
48°
Feels Like 50°
0
Humidity: 57%
UV Index: 5
Wind: 10 mph
2 PM
Cloudy Weather
52°
Feels Like 54°
0
Humidity: 55%
UV Index: 5
Wind: 9 mph
3 PM
Cloudy Weather
54°
Feels Like 54°
0
Humidity: 54%
UV Index: 4
Wind: 9 mph
4 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 51%
UV Index: 3
Wind: 9 mph
5 PM
Sunny Weather
55°
Feels Like 54°
0
Humidity: 54%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
54°
Feels Like 52°
0
Humidity: 58%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
50°
Feels Like 48°
0
Humidity: 64%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 56%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
52°
Feels Like 52°
0
Humidity: 61%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
48°
Feels Like 48°
0
Humidity: 66%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
46°
Feels Like 46°
0
Humidity: 71%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.86 µg/m³
  • PM10: 6.11 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.8 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.37 µg/m³
  • PM10: 6.77 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.4 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.06 µg/m³
  • PM10: 7.61 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.1 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.38 µg/m³
  • PM10: 8.01 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.9 ppb
  • SO2: 1.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.19 µg/m³
  • PM10: 7.88 µg/m³
  • O3: 0.061 ppm
  • NO2: 1 ppb
  • SO2: 1.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

5 PM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.28 µg/m³
  • PM10: 8.14 µg/m³
  • O3: 0.055 ppm
  • NO2: 2.3 ppb
  • SO2: 1 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.

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

Pollutant Concentrations:

  • PM2.5: 6.87 µg/m³
  • PM10: 9.04 µg/m³
  • O3: 0.046 ppm
  • NO2: 5.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.42 µg/m³
  • PM10: 10.01 µg/m³
  • O3: 0.038 ppm
  • NO2: 9.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

8 PM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.06 µg/m³
  • PM10: 11.2 µg/m³
  • O3: 0.033 ppm
  • NO2: 12.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.39 µg/m³
  • PM10: 13.11 µg/m³
  • O3: 0.030 ppm
  • NO2: 14.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.18 µg/m³
  • PM10: 15.37 µg/m³
  • O3: 0.028 ppm
  • NO2: 15.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.55 µg/m³
  • PM10: 17.06 µg/m³
  • O3: 0.025 ppm
  • NO2: 15.3 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.