Today | Weather | Monday, July 20, 2026
Active Weather Warnings

Weather in Gary, Indiana

04:24 PM
Now
Rainy Weather
84° F
Feels Like 88°
Precipitation 40 %
Wind 10 mph
UV Index (0 - 11+) 2
Humidity 67 %
Today
Partly Sunny with Showers
Day 88°
Night 73°
Precipitation 49 %
Wind 8 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Gary Weather Forecast Updated

21 minutes ago
Last updated on

Air Quality in Gary

NOW
63 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 12.9 µg/m³
PM10 13.06 µg/m³
O3 0.058 ppm
NO2 0.5 ppb
SO2 0.3 ppb
CO 0.39 ppm
NH3 0.36 µg/m³
NO 0.12 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.512.9 µg/m³
PM1013.06 µg/m³
O3114.32 µg/m³
NO20.85 µg/m³
SO20.77 µg/m³
CO447.23 µg/m³
NH30.36 µg/m³
NO0.12 µg/m³

Weather Alerts and Warnings for Gary

Air Quality Alert

Air Quality Alert issued July 19 at 12:50PM CDT by NWS Chicago IL
Jul 19, 12:50 PM Jul 21, 12:00 AM
The officials at the Indiana Department of Environmental Management
have declared an Air Quality Action Day, in effect until midnight
CDT Monday night.

An Air Quality Action Day for ozone and PM 2.5 has been issued. A
combination of fine particulate and ozone levels are expected to be
in the Unhealthy for Sensitive Groups range. Active children and
adults, and people with respiratory disease, such as asthma should
limit prolonged outdoor exposure.

Due to observed and forecasted high concentrations of PM2.5 readings
in the area, recommendations are for the public to avoid or limit
outdoor exposure to wildfire smoke, reduce or avoid exertion or heavy
work outdoors and keep windows and doors closed as much as possible.

For additional information, please visit the IDEM Smog page at:

http://www.in.gov/idem/airmonitoring/smogwatch/
Updated: Jul 20, 4:03 PM Source: NWS Alert