What is the air quality in Diest today?

The current Air Quality Index (AQI) in Diest is 38 (Good). PM2.5 concentration is 9.17 µg/m³.

What is the temperature in Diest right now?

The current temperature in Diest is 15.7°C (feels like 15.7°C). Humidity is 46.1% and wind speed is 65.0 km/h.

Is it safe to go outside in Diest?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Diest, Belgium

Windy

15.7°C · 46.1% humidity

15.7°

Feels 15.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

47h · 1 stn

View full history →

Diest'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.

46.1%

Humidity

65.0 km/h

Wind SW

1021.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.17 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Diest?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.59.17 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (4 stations within 25 km)

9.17

Median

9.79

Average

7.0

Low

13.17

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -2.7

What is the 7-day forecast for Diest?

10-21

15.7° 7.9°

0.69 mm

10-22

19.5° 6.5°

10-23

10.9° 6.6°

3.56 mm

10-24

13.7° 6.0°

10-25

16.0° 6.6°

10-26

12.7° 7.1°

7.56 mm

10-27

18.7° 6.2°

0.44 mm

Both models agree Avg diff: 3.1°C

Where are air quality stations near Diest?

Aarschot, Belgium

15.0 km PM2.5: 7.9 µg/m³

Booischot

21.7 km PM2.5: 5.1 µg/m³ PM10: 9.4 µg/m³

Hasselt, Belgium

22.9 km PM2.5: 8.4 µg/m³

Houthalen-helchteren, Belgium

23.3 km PM2.5: 10.6 µg/m³

What cities are near Diest?

38 Tessenderlo 39 Beringen 40 Westerlo 30 Aarschot 41 Heusden 40 Koersel 42 Zolder 36 Geel 35 Hasselt 22 Sint-Truiden

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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 2026-10-21T10:05 UTC.