Hourly Weather | Today Wednesday, May 20, 2026
Active Weather Warnings
Gary, Indiana
7 PM
Cloudy Weather
52°
Feels Like 45°
0
Humidity: 69%
UV Index: 1
Wind: 15 mph
8 PM
Cloudy Weather
52°
Feels Like 45°
0
Humidity: 65%
UV Index: 0
Wind: 14 mph
9 PM
Cloudy Night
50°
Feels Like 45°
0
Humidity: 66%
UV Index: 0
Wind: 12 mph
10 PM
Cloudy Night
48°
Feels Like 43°
0
Humidity: 70%
UV Index: 0
Wind: 12 mph
11 PM
Cloudy Night
52°
Feels Like 45°
0
Humidity: 72%
UV Index: 0
Wind: 10 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3 µg/m³
  • PM10: 3.36 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.4 ppb
  • SO2: 1.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.32 µg/m³
  • PM10: 2.69 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.9 ppb
  • SO2: 1.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 2.18 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.4 ppb
  • SO2: 1.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.5 µg/m³
  • PM10: 1.92 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.58 µg/m³
  • PM10: 2.02 µg/m³
  • O3: 0.036 ppm
  • NO2: 3 ppb
  • SO2: 1.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Gary

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued May 20 at 4:11PM CDT until May 21 at 10:00AM CDT by NWS Chicago IL
May 20, 4:11 PM May 21, 10:00 AM
WHAT: High wave action and dangerous currents expected at Lake
Michigan beaches. Waves 3 to 6 ft expected.

WHERE: Lake County IN.

WHEN: Through Thursday morning.

IMPACTS: Swimming conditions will be life threatening,
especially for inexperienced swimmers.
+ Read More
Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.
Updated: May 20, 6:27 PM Source: NWS Alert