Air Quality in Northfield, United States
Partly Cloudy
27.0°C · 51.4% humidity
27.0°
Feels 27.0°
33
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
24
12pm
24
24
33
3pm
30
29
27
6pm
26
27
26
9pm
26
26
24
12am
24
24
24
3am
24
25
25
6am
25
54
66
9am
83
84
Air Quality Index Trend
30h · 2 stnNorthfield's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
51.4%
Humidity
37.4 km/h
Wind SSE
1014.6 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.89 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Northfield?
Temperature & Precipitation
PM2.5 Trend
30h · 2 stationsPM2.57.89 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX17.4
Extreme
What is the 7-day forecast for Northfield?
07-21
27.0° 22.8°
0.62 mm
07-22
26.6° 17.8°
6.31 mm
07-23
22.2° 16.6°
0.19 mm
07-24
28.7° 15.6°
4.44 mm
07-25
26.6° 16.4°
0.06 mm
07-26
26.0° 20.5°
1.19 mm
07-27
33.1° 16.7°
Both models agree
Avg diff: 4.0°C
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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 2026-07-21T20:23 UTC.