Air Quality in Portage, United States

Windy
21.4°C · 56.2% humidity
21.4°
Feels 21.4°
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
27 5pm
27
27
36 8pm
33
32
30 11pm
29
29
28 2am
28
35
34 5am
34
34
25 8am
25
25
25 11am
25
27
27 2pm
27
34
AD 728×90

Air Quality Index Trend

46h · 186 stn

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

56.2%
Humidity
60.8 km/h
Wind NNE
1019.2 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
36
8.6 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Portage?

Temperature & Precipitation

PM2.5 Trend

46h · 186 stations
PM2.58.6 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX5.9
High
AD 300×250

What is the 7-day forecast for Portage?

08-03
25.6° 19.2°
7.38 mm
08-04
28.9° 19.1°
0.62 mm
08-05
25.6° 20.6°
3.5 mm
08-06
29.8° 22.8°
0.31 mm
08-07
27.4° 21.3°
08-08
29.7° 20.6°
5.31 mm
08-09
29.1° 23.9°
0.75 mm
Both models agree Avg diff: 2.4°C

Where are air quality stations near Portage?

52
Ogden Dunes, Indiana, USA
5.0 km PM2.5: 12.6 µg/m³
37
East Chicago - Marina, Indiana, USA
23.2 km PM2.5: 8.9 µg/m³

What cities are near Portage?

42 Hobart 33 Gary 25 Valparaiso 33 Merrillville 33 Griffith 33 Highland 33 Crown Point 33 East Chicago 33 Schererville 33 Hammond
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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 2026-08-08T01:56 UTC.