Hourly Weather Forecast for Springfield, Illinois

Hourly Weather | Today › Monday, June 29, 2026

Active Weather Warnings

Heat Advisory

Springfield, Illinois

9 PM

84°

Feels Like 91°

Humidity: 74%

UV Index: 0

Wind: 9 mph

10 PM

82°

Feels Like 90°

Humidity: 77%

UV Index: 0

Wind: 9 mph

11 PM

81°

Feels Like 88°

Humidity: 81%

UV Index: 0

Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 PM

22 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.94 µg/m³
PM₁₀: 5.87 µg/m³
O₃: 0.024 ppm
NO₂: 2 ppb
SO₂: 0.9 ppb
CO: 0.10 ppm

Health Recommendations:

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

10 PM

21 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.87 µg/m³
PM₁₀: 5.78 µg/m³
O₃: 0.022 ppm
NO₂: 1.9 ppb
SO₂: 0.9 ppb
CO: 0.10 ppm

Health Recommendations:

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

11 PM

20 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.79 µg/m³
PM₁₀: 5.63 µg/m³
O₃: 0.021 ppm
NO₂: 1.8 ppb
SO₂: 0.8 ppb
CO: 0.10 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Springfield

Moderate Expected Likely

Heat Advisory

Heat Advisory issued June 29 at 1:45PM CDT until July 3 at 12:00AM CDT by NWS Lincoln IL

Jun 29, 1:45 PM → Jul 3, 12:00 AM

WHAT: Heat index values 105 to 110 expected.

WHERE: All of central and southeast Illinois.

WHEN: Until midnight CDT Thursday Night.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.

ADDITIONAL DETAILS: The cumulative effects of this prolonged heat
will pose a serious public health risk, especially for individuals
outdoors or without adequate air conditioning.

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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Updated: Jun 29, 7:13 PM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

Pollutant Concentrations:

Health Recommendations:

Pollutant Concentrations:

Health Recommendations:

Pollutant Concentrations:

Health Recommendations:

Weather Alerts and Warnings for Springfield

Heat Advisory

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