Air Quality in Gary, United States

Windy
23.0°C · 76.5% humidity
23.0°
Feels 23.0°
44
Good
Air quality is satisfactory. Enjoy outdoor activities.
34 stations

Nearby Monitoring Stations

AQI Forecast
27 9am
27
27
44 12pm
37
34
31 3pm
29
28
27 6pm
27
28
28 9pm
28
27
27 12am
25
27
54 3am
66
83
83 6am
66
54
AD 728×90

Air Quality Index Trend

48h · 1 stn

Gary's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

76.5%
Humidity
56.8 km/h
Wind NNE
1015.0 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
44
10.53 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Gary?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.510.53 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (34 stations within 25 km)
10.53
Median
10.62
Average
6.31
Low
13.05
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -0.5

What is the 7-day forecast for Gary?

07-21
25.2° 22.8°
1.94 mm
07-22
23.6° 22.0°
07-23
23.1° 18.9°
9.62 mm
07-24
24.7° 20.8°
07-25
23.3° 19.6°
0.06 mm
07-26
25.1° 23.0°
1.44 mm
07-27
25.1° 22.6°
0.25 mm
Both models agree Avg diff: 3.8°C

Where are air quality stations near Gary?

27
Hammond-167th St, Indiana, USA
12.4 km PM2.5: 6.5 µg/m³
50
Hegewisch 3
17.3 km PM2.5: 12.0 µg/m³
47
Hegewisch 2
17.9 km PM2.5: 11.3 µg/m³
50
Hegewisch 4
18.2 km PM2.5: 12.0 µg/m³
50
Hegewisch 1
18.5 km PM2.5: 12.0 µg/m³
53
Hegewisch 6
18.7 km PM2.5: 12.9 µg/m³
52
Hegewisch 5
18.8 km PM2.5: 12.5 µg/m³
52
East Side 4
18.9 km PM2.5: 12.7 µg/m³
38
Washington HS Collocation 1
19.1 km PM2.5: 9.1 µg/m³
32
Washington HS Collocation 2
19.1 km PM2.5: 7.6 µg/m³

What cities are near Gary?

43 Griffith 44 Highland 42 Hobart 45 East Chicago 35 Merrillville 43 Hammond 42 Munster 42 Portage 45 Calumet City 42 Schererville
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:11 UTC.