Air Quality in Belvidere, United States

Windy
19.0°C · 46.8% humidity
19.0°
Feels 19.0°
29
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
54 8am
54
27
29 11am
27
27
27 2pm
27
27
25 5pm
25
25
34 8pm
34
34
34 11pm
54
54
54 2am
54
54
54 5am
66
66
AD 728×90

Air Quality Index Trend

45h · 4 stn

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

46.8%
Humidity
52.8 km/h
Wind NW
1020.5 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
29
7.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Belvidere?

Temperature & Precipitation

PM2.5 Trend

45h · 4 stations
PM2.57.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
7.0
Median
7.0
Average
7.0
Low
7.0
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -0.5

What is the 7-day forecast for Belvidere?

09-05
19.5° 15.6°
0.38 mm
09-06
27.9° 10.3°
0.81 mm
09-07
22.7° 14.4°
0.38 mm
09-08
21.0° 13.9°
28.56 mm
09-09
28.6° 12.9°
0.75 mm
09-10
24.5° 15.4°
0.31 mm
09-11
29.8° 13.6°
0.75 mm
Both models agree Avg diff: 7.1°C

Where are air quality stations near Belvidere?

42
Rockford, Illinois, USA
20.2 km PM2.5: 10.1 µg/m³
29
Rockford, Illinois, USA
20.2 km PM2.5: 7.0 µg/m³
33
Rockford, Illinois, USA
20.2 km PM2.5: 7.9 µg/m³
49
Rockford, Illinois, USA
20.2 km PM2.5: 11.8 µg/m³

What cities are near Belvidere?

29 Machesney Park 29 Loves Park 29 Rockford 29 Beloit 24 Sycamore 27 Huntley 25 DeKalb 27 Lake in the Hills 27 Crystal Lake 27 Algonquin
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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 2026-09-05T16:33 UTC.