Air Quality in Griffith, United States

Partly Cloudy
25.6°C · 60.3% humidity
25.6°
Feels 25.6°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
36 stations

Nearby Monitoring Stations

AQI Forecast
25 1pm
25
25
60 4pm
50
43
38 7pm
36
34
32 10pm
30
29
29 1am
26
35
67 4am
83
83
83 7am
54
66
83 10am
84
146
AD 728×90

Air Quality Index Trend

48h · 4 stn

Griffith's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Griffith is 1.1× the WHO 24-hour guideline of 15 µg/m³.

60.3%
Humidity
39.6 km/h
Wind NE
1014.3 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.18 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Griffith?

Temperature & Precipitation

PM2.5 Trend

48h · 4 stations
PM2.516.18 µg/m³ ×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
Station readings (36 stations within 25 km)
16.18
Median
16.38
Average
12.92
Low
22.69
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -9.1

What is the 7-day forecast for Griffith?

07-21
25.9° 23.0°
1.56 mm
07-22
24.1° 22.0°
07-23
24.2° 18.2°
7.13 mm
07-24
25.9° 21.1°
0.06 mm
07-25
22.6° 20.4°
0.06 mm
07-26
26.0° 22.6°
1.69 mm
07-27
25.5° 22.2°
0.25 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Griffith?

70
Hammond-167th St, Indiana, USA
9.4 km PM2.5: 21.1 µg/m³
61
Hegewisch 3
16.6 km PM2.5: 16.7 µg/m³
63
Hegewisch 4
17.4 km PM2.5: 17.7 µg/m³
63
Hegewisch 5
17.7 km PM2.5: 17.6 µg/m³
58
Hegewisch 2
17.9 km PM2.5: 15.3 µg/m³
62
Hegewisch 6
18.5 km PM2.5: 17.2 µg/m³
73
South Deering 6
18.9 km PM2.5: 22.7 µg/m³
60
Hegewisch 1
19.0 km PM2.5: 16.6 µg/m³
61
South Deering 5
19.9 km PM2.5: 16.9 µg/m³
61
East Side 4
20.1 km PM2.5: 17.0 µg/m³

What cities are near Griffith?

59 Highland 60 Schererville 59 Munster 59 Hammond 60 Dyer 57 Merrillville 58 Gary 59 Lansing 59 East Chicago 60 Calumet City
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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 2026-07-21T21:05 UTC.