Air Quality in Portage, United States
Windy
10.1°C · 67.2% humidity
10.1°
Feels 10.1°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
AQI Forecast
24
3pm
24
24
38
6pm
34
31
29
9pm
29
28
27
12am
26
25
25
3am
24
24
25
6am
25
25
24
9am
24
24
24
12pm
24
24
Air Quality Index Trend
46h · 2 stnPortage'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 Portage is 1.8× the WHO annual guideline of 5 µg/m³.
67.2%
Humidity
50.2 km/h
Wind NNW
1027.6 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.1 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Portage?
Temperature & Precipitation
PM2.5 Trend
46h · 2 stationsPM2.59.1 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
Station readings (1 station within 25 km)
9.1
Median
9.1
Average
9.1
Low
9.1
High
PM2.5 µg/m³ · Model: 6.15 · Bias: -3.0
What is the 7-day forecast for Portage?
05-28
24.0° 12.1°
1.56 mm
05-29
24.4° 3.5°
05-30
20.8° 12.5°
1.06 mm
05-31
27.5° 9.7°
0.13 mm
06-01
28.7° 13.8°
1.25 mm
06-02
19.9° 12.5°
3.44 mm
06-03
25.5° 18.7°
0.13 mm
Both models agree
Avg diff: 4.1°C
Where are air quality stations near Portage?
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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 2026-05-28T22:58 UTC.