Today | Weather | Wednesday, March 18, 2026

Weather in Gary, Indiana

03:04 AM
Now
Snowy Weather
27° F
Feels Like
Precipitation 60 %
Wind 14 mph
Humidity 77 %
Today
Snowy Weather
Day 45°
Night 30°
Precipitation 65 %
Wind 13 mph
UV Index (0 - 11+) 2
Overnight Frost 8 AM – 8 AM

Gary Weather Forecast Updated

4 minutes ago
Last updated on

Air Quality in Gary

NOW
47 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.36 µg/m³
PM10 3.51 µg/m³
O3 0.051 ppm
NO2 1.4 ppb
SO2 0.9 ppb
CO 0.14 ppm
NH3 0.34 µg/m³
NO 0 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.53.36 µg/m³
PM103.51 µg/m³
O3100.27 µg/m³
NO22.69 µg/m³
SO22.32 µg/m³
CO161.7 µg/m³
NH30.34 µg/m³
NO0 µg/m³