Air Quality in Diest, Belgium
Clear
13.1°C · 49.5% humidity
13.1°
Feels 13.1°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Diest's air quality — share it
AQI Forecast
Calibrated
23
9pm
16
29
22
12am
20
19
25
3am
25
24
24
6am
24
23
23
9am
23
23
23
12pm
23
43
23
3pm
23
43
23
6pm
23
23
Station readings
29
CAMS model
adj -11
34
27
27
27
27
27
34
34
34
34
34
34
34
34
34
34
34
54
34
34
54
34
34
34
Air Quality Index Trend
3h · 3 stnDiest's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.
49.5%
Humidity
4.7 km/h
Wind SE
1014.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.2 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Diest?
Temperature & Precipitation
PM2.5 Trend
3h · 3 stationsPM2.55.2 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
5.2
Median
5.83
Average
3.8
Low
8.4
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.0
What is the 7-day forecast for Diest?
07-21
25.9° 14.3°
0.13 mm
07-22
27.0° 13.1°
07-23
21.6° 18.0°
0.31 mm
07-24
23.3° 14.7°
4.25 mm
07-25
31.9° 10.1°
07-26
31.6° 12.9°
07-27
29.3° 19.6°
Both models agree
Avg diff: 3.5°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 2026-07-21T22:58 UTC.