Air Quality in Northfield, United States
Clear
27.8°C · 26.8% humidity
27.8°
Feels 27.8°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
24
10pm
24
24
40
1am
35
32
30
4am
28
28
27
7am
26
25
25
10am
25
24
24
1pm
24
24
24
4pm
24
24
24
7pm
24
24
Air Quality Index Trend
30h · 1 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.
26.8%
Humidity
39.2 km/h
Wind NNW
1018.5 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.49 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Northfield?
Temperature & Precipitation
PM2.5 Trend
30h · 1 stationPM2.59.49 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX5.9
High
What is the 7-day forecast for Northfield?
08-03
30.4° 15.4°
08-04
32.2° 9.7°
0.56 mm
08-05
25.4° 10.3°
9.38 mm
08-06
44.1° 14.9°
0.88 mm
08-07
30.0° 16.0°
0.62 mm
08-08
39.6° 14.0°
0.06 mm
08-09
39.0° 26.1°
0.56 mm
Both models agree
Avg diff: 5.3°C
What cities are near Northfield?
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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 2026-08-08T06:30 UTC.