Today
Sun, Jun 21
Heavy rain
32°20°
- Rain chance
- 86%
- Precip
- 19.1 mm
- Max wind
- 19 km/h
Flanders, Belgium · Brussels time · 50.87°, 5.52°
Extreme heat Friday: feels-like temperatures up to 41 °C.
Extreme heat Friday: feels-like temperatures up to 41 °C.
Derived advisory — not an official warning
Current conditions · 4:15 PM local
32°C
Overcast
Feels like 26°C
45
Good
US AQI · European AQI 60
Air quality in Bilzen is currently good, with a US AQI of 45 (European AQI 60). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 10.1 µg/m³. Pollen in the air today: grass (moderate) — allergy sufferers take note.
AQI computed from the CAMS air quality model via Open-Meteo. Bands follow the US EPA scale.
Bilzen is currently seeing overcast, with 32 °C on the thermometer. It feels warmer than it reads, more like 36 °C. Wind is from the NNW at 6 km/h. Humidity stands at 49% with sea-level pressure near 1024 hPa.
Heavy rain · rain likely (86%)
Overcast
A steady stretch: highs near 38°, lows around 19°, and no day above a 27% rain chance through Saturday.
Today brings heavy rain with a high of 32 °C and a low of 20 °C. Rain chance peaks at 86% with around 19.1 mm possible. Expect overcast tomorrow, between 22 °C and 32 °C. Tuesday brings overcast with a high of 34 °C and a low of 22 °C.
Today
Sun, Jun 21
Heavy rain
32°20°
Tomorrow
Mon, Jun 22
Overcast
32°22°
Tuesday
Tue, Jun 23
Overcast
34°22°
The weather picture for Bilzen opens with overcast; it's 32 °C out, feeling like 36 °C. Today's forecast calls for heavy rain, topping out near 32 °C before falling back to 20 °C overnight. Winds blow mainly from the NE around 19 km/h, with gusts up to 34 km/h. Daytime highs hold fairly steady this week, staying within 32 to 38 °C. Rain is in the picture on today, with roughly 19 mm expected in total across the week. Tomorrow brings overcast with a high of 32 °C and a 0% chance of precipitation. The UV index reaches 7 today, so sun protection is sensible during the middle of the day. Sunrise comes at 05:24 and sunset at 21:55, giving 16.5 hours of daylight. Current humidity sits at 49% with pressure near 1024 hPa. Looking further out, Thursday shows overcast with a high around 36 °C, while Saturday ends the week at 35 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Soil temperatures today read surface 22 °C, 6 cm 24.4 °C, 18 cm 23.5 °C, 54 cm 17.9 °C. Soil moisture sits at 0-1 cm at 0.26 m³/m³, 3-9 cm at 0.26 m³/m³, 27-81 cm at 0.27 m³/m³. For wheat, the root-zone reading is within the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 45 mm against only 19 mm of expected rain — a 26 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 07:00 on 2026-06-21, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 38 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 38 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 166, maize 128.
Weather alerts for Bilzen (derived from forecast data, not official warnings): Extreme heat Friday: feels-like temperatures up to 41 °C.
| Variable | Value |
|---|---|
| City | Bilzen, Flanders, Belgium |
| Coordinates | 50.87325, 5.5184 |
| Elevation | 53 m |
| Timezone | Europe/Brussels |
| Population | 29,622 |
| Observed at (local) | 4:15 PM |
| Temperature (2 m) | 32°C |
| Apparent temperature | 26°C |
| Relative humidity (2 m) | 61% |
| Dew point (2 m) | 17°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 3 |
| Cloud cover | 100% |
| Surface pressure | 1018 hPa |
| Sea-level pressure | 1024 hPa |
| Wind speed (10 m) | 6 km/h |
| Wind gusts (10 m) | 17 km/h |
| Wind direction (10 m) | 337° (NNW) |
| Visibility | 50 km |
| UV index | 0 |
| Day / night | Day |
| Today max / min | 32°C / 20°C |
| Today feels-like max / min | 37°C / 20°C |
| Today precipitation sum | 19.1 mm |
| Today rain sum | 19.1 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 86% |
| Today max wind / gusts | 19 km/h / 34 km/h |
| Dominant wind direction | 49° (NE) |
| Sunrise / sunset | 5:24 AM / 9:55 PM |
| Daylight duration | 16h 31m |
| Sunshine duration | 14h 04m |
| Max UV index | 7.05 |
| Reference evapotranspiration (ET₀) | 5.87 mm |
| Topsoil moisture (0–1 cm) | 0.232 m³/m³ |
| Surface soil temperature | 20°C |
| US AQI | 45 |
| European AQI | 60 |
| PM2.5 | 10.1 µg/m³ |
| PM10 | 13.2 µg/m³ |
| Ozone (O₃) | 130 µg/m³ |
| Nitrogen dioxide (NO₂) | 1.9 µg/m³ |
| Sulphur dioxide (SO₂) | 0.3 µg/m³ |
| Carbon monoxide (CO) | 141 µg/m³ |
| Dust | 4 µg/m³ |
| Alder pollen | 0 gr/m³ |
| Birch pollen | 0 gr/m³ |
| Grass pollen | 48.7 gr/m³ |
| Mugwort pollen | 1.3 gr/m³ |
| Olive pollen | 0.2 gr/m³ |
| Ragweed pollen | 0 gr/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/be/flanders/bilzen" width="320" height="180" frameborder="0" title="Bilzen weather" loading="lazy"></iframe>Rain is unlikely in Bilzen tomorrow; the precipitation chance stays around 0%.
Today Bilzen sees heavy rain with a high of 32 °C and a low of 20 °C.
Tomorrow's high in Bilzen is forecast at 32 °C with overcast.
No, not especially; gusts only reach up to 34 km/h today.
The UV index peaks at 7 today, which is high.
The sun rises at 05:24 and sets at 21:55 local time.
Air quality is good right now, with a US AQI reading of 45.