Air Quality in Fitchburg, United States
Windy
26.9°C · 59.7% humidity
26.9°
Feels 26.9°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Fitchburg's air quality — share it
AQI Forecast
Calibrated
21
7am
20
20
17
10am
20
21
21
1pm
21
21
21
4pm
21
21
21
7pm
21
21
21
10pm
21
21
21
1am
21
21
21
4am
21
21
Station readings
6h ago
AQI 16
PM2.5 3.8 µg/m³ · 6h ago
CAMS model
adj -4
25
24
24
24
24
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Air Quality Index Trend
6h · 2 stnFitchburg's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
59.7%
Humidity
73.6 km/h
Wind W
1018.3 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.03 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Fitchburg?
Temperature & Precipitation
PM2.5 Trend
6h · 2 stationsPM2.54.03 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX7.9
Very High
Station readings (4 stations within 25 km)
4.03
Median
4.07
Average
3.8
Low
4.3
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +1.8
What is the 7-day forecast for Fitchburg?
05-29
26.9° 4.8°
05-30
22.4° 9.0°
2.5 mm
05-31
27.3° 11.6°
0.75 mm
06-01
28.3° 14.1°
3.0 mm
06-02
20.7° 15.6°
1.37 mm
06-03
28.2° 19.4°
06-04
22.9° 11.2°
1.5 mm
Both models agree
Avg diff: 5.4°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 2026-05-29T15:07 UTC.