Today
Sun, Jun 21
Heavy rain
30°19°
- Rain chance
- 90%
- Precip
- 10.9 mm
- Max wind
- 27 km/h
Geraardsbergen weather forecast
Flanders, Belgium · Brussels time · 50.77°, 3.88°
Extreme heat Friday: feels-like temperatures up to 40 °C.
Extreme heat Friday: feels-like temperatures up to 40 °C.
Derived advisory — not an official warning
Current conditions · 3:15 PM local
Current conditions in Geraardsbergen
29°C
Partly cloudy
Feels like 23°C
- Humidity
- 88%
- Wind
- 8 km/h N
- Gusts
- 21 km/h
- UV index
- 0
- Visibility
- 5.6 km
Right now
Geraardsbergen is currently seeing partly cloudy, with 29 °C on the thermometer. It feels warmer than it reads, more like 34 °C. Wind is from the N at 8 km/h. Humidity stands at 61% with sea-level pressure near 1024 hPa.
At a glance
Today
30° / 19°Heavy rain · rain likely (90%)
Tomorrow
31° / 20°Overcast
Upcoming · to Saturday
36° / 20°A steady stretch: highs near 36°, lows around 20°, and no day above a 20% rain chance through Saturday.
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Next 3 days
Today looks like heavy rain; temperatures run from 19 °C up to 30 °C. Rain chance peaks at 90% with around 10.9 mm possible. Gusts may reach 49 km/h from the NNE. Tomorrow brings overcast with a high of 31 °C and a low of 20 °C. Expect mainly clear Tuesday, between 20 °C and 34 °C.
Tomorrow
Mon, Jun 22
Overcast
31°20°
- Rain chance
- 0%
- Precip
- 0 mm
- Max wind
- 13 km/h
Tuesday
Tue, Jun 23
Mainly clear
34°20°
- Rain chance
- 4%
- Precip
- 0 mm
- Max wind
- 10 km/h
Next 48 hours
- 12 AM22°17%16 km/h
- 1 AM19°3%27 km/h
- 2 AM20°2%14 km/h
- 3 AM21°29%14 km/h
- 4 AM19°68%7 km/h
- 5 AM19°90%4 km/h
- 6 AM20°77%6 km/h
- 7 AM20°45%4 km/h
- 8 AM21°20%7 km/h
- 9 AM22°9%6 km/h
- 10 AM24°3%7 km/h
- 11 AM25°0%5 km/h
- 12 PM26°0%5 km/h
- 1 PM28°0%7 km/h
- 2 PM29°0%9 km/h
- 3 PM29°0%8 km/h
- 4 PM30°0%9 km/h
- 5 PM30°0%9 km/h
- 6 PM29°0%9 km/h
- 7 PM28°0%13 km/h
- 8 PM27°0%13 km/h
- 9 PM26°0%11 km/h
- 10 PM24°0%12 km/h
- 11 PM23°0%10 km/h
- 12 AM22°0%8 km/h
- 1 AM21°0%6 km/h
- 2 AM21°0%6 km/h
- 3 AM20°0%6 km/h
- 4 AM20°0%7 km/h
- 5 AM20°0%9 km/h
- 6 AM20°0%11 km/h
- 7 AM21°0%12 km/h
- 8 AM22°0%11 km/h
- 9 AM23°0%10 km/h
- 10 AM25°0%9 km/h
- 11 AM27°0%10 km/h
- 12 PM28°0%12 km/h
- 1 PM29°0%13 km/h
- 2 PM30°0%12 km/h
- 3 PM31°0%12 km/h
- 4 PM31°0%10 km/h
- 5 PM31°0%10 km/h
- 6 PM31°0%10 km/h
- 7 PM31°0%12 km/h
- 8 PM30°0%10 km/h
- 9 PM28°0%11 km/h
- 10 PM27°0%11 km/h
- 11 PM25°0%10 km/h
In depth
The weather picture for Geraardsbergen opens with partly cloudy; it's 29 °C out, feeling like 34 °C. Today's forecast calls for heavy rain, topping out near 30 °C before falling back to 19 °C overnight. Winds blow mainly from the NNE around 27 km/h, with gusts up to 49 km/h. Daytime highs hold fairly steady this week, staying within 30 to 36 °C. Rain is in the picture on today, with roughly 11 mm expected in total across the week. Tomorrow brings overcast with a high of 31 °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 05:31 and sunset at 22:01, giving 16.5 hours of daylight. Current humidity sits at 61% with pressure near 1024 hPa. Looking further out, Thursday shows overcast with a high around 35 °C, while Saturday ends the week at 32 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Air quality
39
Good
US AQI · European AQI 45
Air quality in Geraardsbergen is currently good, with a US AQI of 39 (European AQI 45). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 8.8 µg/m³. Pollen in the air today: grass (moderate) — allergy sufferers take note.
Pollutants
- PM2.5
- 8.8 µg/m³
- PM10
- 11.8 µg/m³
- Ozone (O₃)
- 107 µg/m³
- NO₂
- 1.5 µg/m³
- SO₂
- 0.4 µg/m³
- CO
- 146 µg/m³
- Dust
- 2 µg/m³
Pollen
- Grass
- 49.6 gr/m³
- Birch
- 0 gr/m³
- Alder
- 0 gr/m³
- Olive
- 0.1 gr/m³
- Mugwort
- 0.8 gr/m³
- Ragweed
- 0 gr/m³
Sun & UV
- Sunrise
- 5:31 AM
- Sunset
- 10:01 PM
- Daylight
- 16h 30m
- Max UV
- 6.75 High
Wind
- Wind
- 8 km/h
- Gusts
- 21 km/h
- Direction
- N (9°)
Farming weather
Soil temperatures today read surface 21.4 °C, 6 cm 23.4 °C, 18 cm 22.9 °C, 54 cm 17.7 °C. Soil moisture sits at 0-1 cm at 0.28 m³/m³, 3-9 cm at 0.28 m³/m³, 27-81 cm at 0.28 m³/m³. For wheat, the root-zone reading is within the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 43 mm against only 11 mm of expected rain — a 33 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 06:00 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 36 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 36 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 158, maize 120.
- Topsoil moisture
- 0.249 m³/m³
- Soil temp
- 21°C
- ET₀ today
- 5.52 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 10.9 mm
- Wind
- 8 km/h
- Humidity
- 88%
Advisory summary
Weather alerts for Geraardsbergen (derived from forecast data, not official warnings): Extreme heat Friday: feels-like temperatures up to 40 °C.
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All data for Geraardsbergen
| Variable | Value |
|---|---|
| City | Geraardsbergen, Flanders, Belgium |
| Coordinates | 50.77343, 3.88223 |
| Elevation | 32 m |
| Timezone | Europe/Brussels |
| Population | 30,807 |
| Observed at (local) | 3:15 PM |
| Temperature (2 m) | 29°C |
| Apparent temperature | 23°C |
| Relative humidity (2 m) | 88% |
| Dew point (2 m) | 20°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 2 |
| Cloud cover | 71% |
| Surface pressure | 1022 hPa |
| Sea-level pressure | 1024 hPa |
| Wind speed (10 m) | 8 km/h |
| Wind gusts (10 m) | 21 km/h |
| Wind direction (10 m) | 9° (N) |
| Visibility | 5.6 km |
| UV index | 0 |
| Day / night | Day |
| Today max / min | 30°C / 19°C |
| Today feels-like max / min | 34°C / 19°C |
| Today precipitation sum | 10.9 mm |
| Today rain sum | 10.9 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 90% |
| Today max wind / gusts | 27 km/h / 49 km/h |
| Dominant wind direction | 25° (NNE) |
| Sunrise / sunset | 5:31 AM / 10:01 PM |
| Daylight duration | 16h 30m |
| Sunshine duration | 14h 54m |
| Max UV index | 6.75 |
| Reference evapotranspiration (ET₀) | 5.52 mm |
| Topsoil moisture (0–1 cm) | 0.249 m³/m³ |
| Surface soil temperature | 21°C |
| US AQI | 39 |
| European AQI | 45 |
| PM2.5 | 8.8 µg/m³ |
| PM10 | 11.8 µg/m³ |
| Ozone (O₃) | 107 µg/m³ |
| Nitrogen dioxide (NO₂) | 1.5 µg/m³ |
| Sulphur dioxide (SO₂) | 0.4 µg/m³ |
| Carbon monoxide (CO) | 146 µg/m³ |
| Dust | 2 µg/m³ |
| Alder pollen | 0 gr/m³ |
| Birch pollen | 0 gr/m³ |
| Grass pollen | 49.6 gr/m³ |
| Mugwort pollen | 0.8 gr/m³ |
| Olive pollen | 0.1 gr/m³ |
| Ragweed pollen | 0 gr/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/be/flanders/geraardsbergen" width="320" height="180" frameborder="0" title="Geraardsbergen weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Geraardsbergen tomorrow?
Rain is unlikely in Geraardsbergen tomorrow; the precipitation chance stays around 0%.
What is the temperature in Geraardsbergen today?
Today Geraardsbergen sees heavy rain with a high of 30 °C and a low of 19 °C.
How hot will it be in Geraardsbergen tomorrow?
Tomorrow's high in Geraardsbergen is forecast at 31 °C with overcast.
Is it windy in Geraardsbergen today?
Yes, yes — gusts up to 49 km/h today.
What is the UV index in Geraardsbergen today?
The UV index peaks at 7 today, which is high.
What time is sunrise and sunset in Geraardsbergen today?
The sun rises at 05:31 and sets at 22:01 local time.
Is the air quality in Geraardsbergen good today?
Air quality is good right now, with a US AQI reading of 39.