Air Quality in Gary, United States

Windy
17.7°C · 58.1% humidity
17.7°
Feels 17.7°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
27 7am
54
54
28 10am
35
41
44 1pm
47
49
30 4pm
31
25
24 7pm
53
53
34 10pm
34
34
34 1am
34
34
34 4am
27
34
AD 728×90

Air Quality Index Trend

45h · 273 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.

58.1%
Humidity
58.0 km/h
Wind N
1020.7 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.7 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Gary?

Temperature & Precipitation

PM2.5 Trend

45h · 273 stations
PM2.56.7 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (1 station within 25 km)
6.7
Median
6.7
Average
6.7
Low
6.7
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +3.3

What is the 7-day forecast for Gary?

09-05
21.1° 17.7°
09-06
26.2° 18.7°
0.06 mm
09-07
24.0° 19.1°
3.75 mm
09-08
21.3° 16.2°
41.75 mm
09-09
24.7° 17.6°
0.62 mm
09-10
23.3° 19.0°
1.0 mm
09-11
22.7° 17.0°
0.81 mm
Both models agree Avg diff: 5.2°C

Where are air quality stations near Gary?

27
Ogden Dunes, Indiana, USA
12.5 km PM2.5: 6.5 µg/m³
29
Hegewisch 3
17.3 km PM2.5: 7.0 µg/m³
28
Kingery Near-road #1, Illinois, USA
17.6 km PM2.5: 6.7 µg/m³
26
Hegewisch 2
17.9 km PM2.5: 6.2 µg/m³
30
Hegewisch 4
18.2 km PM2.5: 7.2 µg/m³
26
Hegewisch 1
18.5 km PM2.5: 6.3 µg/m³
30
Hegewisch 6
18.7 km PM2.5: 7.1 µg/m³
36
Hegewisch 5
18.8 km PM2.5: 8.7 µg/m³
25
East Side 4
18.9 km PM2.5: 6.1 µg/m³
22
East Side 3
19.7 km PM2.5: 5.3 µg/m³

What cities are near Gary?

28 Griffith 28 Highland 42 Hobart 28 East Chicago 28 Merrillville 28 Hammond 28 Munster 42 Portage 28 Calumet City 28 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 2026-09-05T15:04 UTC.