Hourly Weather Forecast for Hammond, Indiana

Hourly Weather | Today › Tuesday, September 1, 2026

Active Weather Warnings

Heat Advisory

Hammond, Indiana

11 AM

86°

Feels Like 97°

Humidity: 68%

UV Index: 4

Wind: 8 mph

12 PM

90°

Feels Like 102°

Humidity: 63%

UV Index: 6

Wind: 8 mph

1 PM

91°

Feels Like 106°

Humidity: 59%

UV Index: 7

Wind: 9 mph

2 PM

93°

Feels Like 106°

Humidity: 56%

UV Index: 6

Wind: 9 mph

3 PM

93°

Feels Like 106°

Humidity: 53%

UV Index: 5

Wind: 9 mph

4 PM

93°

Feels Like 102°

Humidity: 54%

UV Index: 4

Wind: 10 mph

5 PM

91°

Feels Like 100°

Humidity: 56%

UV Index: 2

Wind: 9 mph

6 PM

90°

Feels Like 99°

Humidity: 61%

UV Index: 1

Wind: 8 mph

7 PM

88°

Feels Like 97°

Humidity: 66%

UV Index: 0

Wind: 7 mph

8 PM

84°

Feels Like 93°

Humidity: 73%

UV Index: 0

Wind: 6 mph

9 PM

82°

Feels Like 91°

Humidity: 80%

UV Index: 0

Wind: 6 mph

10 PM

81°

Feels Like 90°

Humidity: 83%

UV Index: 0

Wind: 6 mph

11 PM

81°

Feels Like 88°

Humidity: 84%

UV Index: 0

Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 AM

54 AQI

Moderate air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 13.69 µg/m³
PM₁₀: 14.36 µg/m³
O₃: 0.043 ppm
NO₂: 0.9 ppb
SO₂: 0.6 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.

12 PM

54 AQI

Moderate air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 14.07 µg/m³
PM₁₀: 14.73 µg/m³
O₃: 0.048 ppm
NO₂: 0.7 ppb
SO₂: 0.6 ppb
CO: 0.13 ppm

Health Recommendations:

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

1 PM

55 AQI

Moderate air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 14.32 µg/m³
PM₁₀: 14.97 µg/m³
O₃: 0.052 ppm
NO₂: 0.6 ppb
SO₂: 0.6 ppb
CO: 0.13 ppm

Health Recommendations:

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

2 PM

55 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 10.76 µg/m³
PM₁₀: 11.34 µg/m³
O₃: 0.055 ppm
NO₂: 0.4 ppb
SO₂: 0.6 ppb
CO: 0.11 ppm

Health Recommendations:

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

3 PM

54 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 9.07 µg/m³
PM₁₀: 9.61 µg/m³
O₃: 0.055 ppm
NO₂: 0.3 ppb
SO₂: 0.5 ppb
CO: 0.10 ppm

Health Recommendations:

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

4 PM

54 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 8.97 µg/m³
PM₁₀: 9.51 µg/m³
O₃: 0.055 ppm
NO₂: 0.3 ppb
SO₂: 0.5 ppb
CO: 0.10 ppm

Health Recommendations:

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

5 PM

47 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 9.81 µg/m³
PM₁₀: 10.39 µg/m³
O₃: 0.051 ppm
NO₂: 0.9 ppb
SO₂: 0.4 ppb
CO: 0.11 ppm

Health Recommendations:

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

6 PM

45 AQI

Good air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 10.9 µg/m³
PM₁₀: 11.54 µg/m³
O₃: 0.043 ppm
NO₂: 2 ppb
SO₂: 0.4 ppb
CO: 0.12 ppm

Health Recommendations:

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

7 PM

48 AQI

Good air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 11.43 µg/m³
PM₁₀: 12.13 µg/m³
O₃: 0.037 ppm
NO₂: 3.1 ppb
SO₂: 0.3 ppb
CO: 0.13 ppm

Health Recommendations:

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

8 PM

48 AQI

Good air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 11.56 µg/m³
PM₁₀: 12.31 µg/m³
O₃: 0.032 ppm
NO₂: 3.7 ppb
SO₂: 0.3 ppb
CO: 0.13 ppm

Health Recommendations:

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

9 PM

49 AQI

Good air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 11.69 µg/m³
PM₁₀: 12.48 µg/m³
O₃: 0.028 ppm
NO₂: 3.9 ppb
SO₂: 0.3 ppb
CO: 0.14 ppm

Health Recommendations:

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

10 PM

49 AQI

Good air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 11.79 µg/m³
PM₁₀: 12.6 µg/m³
O₃: 0.025 ppm
NO₂: 3.9 ppb
SO₂: 0.2 ppb
CO: 0.14 ppm

Health Recommendations:

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

11 PM

49 AQI

Good air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 11.74 µg/m³
PM₁₀: 12.53 µg/m³
O₃: 0.022 ppm
NO₂: 3.8 ppb
SO₂: 0.2 ppb
CO: 0.14 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 Hammond

Moderate Expected Likely

Heat Advisory

Heat Advisory issued September 1 at 9:54AM CDT until September 1 at 9:00PM CDT by NWS Chicago IL

Sep 1, 12:00 PM → Sep 1, 9:00 PM

WHAT: Heat index values of 100 to 110 expected.

WHERE: Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

WHEN: For the first Heat Advisory, until 9 PM CDT /10 PM EDT/ this
evening. For the second Heat Advisory, from noon CDT /1 PM EDT/ to
9 PM CDT /10 PM EDT/ Wednesday.

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

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Consider altering outdoor plans.

Updated: Sep 1, 10:05 AM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

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Weather Alerts and Warnings for Hammond

Heat Advisory

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