Forecasts for the next 36 hours (chart)
(These forecasts are usually updated daily)
Update 7-12-25 – 8 AM
(BMCB Multimodel: ICOND2 – AROMEHD – ALADIN)
📊 Rainfall (next 36 hours)
- North of the Scheldt: 8–15 L/m²
- Between Scheldt and Sambre-Meuse: 8–16 L/m²
- South of Sambre-Meuse: 8–20 L/m²
☁️ Today
🔹 This morning
Fully overcast (100% nimbostratus) with rain gradually reaching the south-west half of the country.
Wind: S, gusts 25–35 km/h.
🔹 This afternoon
Very cloudy under continuous nimbostratus cover, with widespread rain.
Wind: SW, gusts 30–50 km/h.
Max temperatures:
- 14°C at the coast
- 12–15°C inland
- 10–11°C in the High Ardennes
🔹 Evening
Rain persisting over Campine and south of the Sambre-Meuse valley. Elsewhere: cloudy with some breaks (80–100% stratocumulus/cirrus), and wider clear spells at the coast (40–80%).
Wind: SW, gusts 40–60 km/h, locally 60–70 km/h in West Flanders.
🔹 Tonight
Variable cloudiness (50–100% stratocumulus/cirrus).
Wind: SW, gusts 30–50 km/h.
Min temperatures:
- 11°C at the coast
- 11–12°C inland
- 6–10°C south of Sambre-Meuse
🌧️ Tomorrow
🔹 Morning
Fully overcast (100% nimbostratus) with intermittent rain.
Wind: S to SW, gusts 25–35 km/h.
🔹 Afternoon
Very cloudy with occasional moderate rain, especially over the centre and north-west.
Wind: SW, gusts 40–60 km/h.
Max temperatures:
- 13°C at the coast
- 13–15°C inland
- 10–12°C in the High Ardennes
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National Thermal Indicator (Chart)
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Update for 7 December 2025 – 10 AM
The national thermal indicator is expected to reach its maximum over the next 24 hours, with values between +8 and +9, corresponding to daytime highs of 10 to 16°C depending on the region.
It will then gradually decrease, settling between +1 and +3 around 20–21 December.
As a result, daytime temperatures—still between 6 and 13°C until mid-December—should gradually fall to 3 to 10°C by the end of the period.
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General Weather Evolution for the Next Days
Europe: Analysis & Forecast maps (6=>? days)
Update – 7 December 2025, 12:00
A fast south-westerly oceanic flow is currently shaping the weather across much of western and central Europe. It brings very mild and unsettled air to our regions, within which a new storm depression (982 hPa) will develop on Monday and move on Tuesday toward the maritime areas northwest of Ireland (961hPa).
Its warm front will cross the Benelux during Monday night into Tuesday, followed by a much-weakened cold front between Tuesday and Wednesday.
Later on Thursday, a 1027 hPa anticyclone will settle over central Europe and the north-western Balkans, sending us slightly less mild but more stable and drier air originating from the Alps and southern France.
Early in the weekend, a weak cold front should reach our regions. Additional rain-bearing disturbances are expected at the end of the weekend and the beginning of next week, all within conditions that will remain unusually mild for the season.
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Forecast for the coming days (Chart)
Multimodel BMCB ( OPERATIONAL + ENSEMBLES ICON-GFS-ECMWF-AIFS-GCGFS )
Forecast of the range of temperatures, precipitations + general type of weather in Belgium
(These forecasts are usually updated daily)
Update 7 December 2025 – 2 PM
Weather Evolution Summary
According to the BMCB Multimodel
(Operational models + ICON – AIFS – ECMWF Ensembles)
📅 Tuesday, 9 December
- Precipitation (24h): 0–5 L/m²
- Minima: 7/13°C – Maxima: 9/15°C
- Exceptionally mild
Variable cloudiness with sunny spells; some early rain over Flanders. During the following night, most rain will fall west of the Meuse.
Moderate southerly winds with gusts 30–50 km/h.
📅 Wednesday, 10 December
- Precipitation (24h): 0.5–10 L/m²
- Minima: 7/13°C – Maxima: 8/14°C
- Exceptionally mild
Generally rainy over central and southeastern Belgium; cloudy to very cloudy but mostly dry over both Flanders.
Moderate S/SW winds with gusts 35–55 km/h.
📅 Thursday, 11 December
- Precipitation (24h): 0–2 L/m²
- Minima: 5/11°C – Maxima: 6/12°C
- Very mild
Cloudy with sunny intervals, becoming heavily overcast from the south later in the day.
📅 Friday, 12 December
- Precipitation (24h): 0–5 L/m²
- Minima: 4/10°C – Maxima: 7/13°C
- Very mild
Very cloudy with some rain first in West Flanders, later more generally west of the Meuse. Overnight: some final showers in the Ardennes, followed by wide clear spells everywhere.
📅 Saturday, 13 December
- Precipitation (24h): 0–4 L/m²
- Minima: 4/10°C – Maxima: 7/13°C
- Very mild
Mostly sunny conditions.
🌡️ Probable Trend
📅 Sunday, 14 December
- Precipitation: 2–5 L/m²
- Minima: 3/9°C – Maxima: 6/12°C
- Very mild, little precipitation.
📅 Monday, 15 December
- Precipitation: 5–35 L/m²
- Minima: 2/8°C – Maxima: 7/13°C
- Very mild, at times moderate to heavy rain/showers.
📅 Tuesday, 16 December
- Precipitation: 10–25 L/m²
- Minima: 3/9°C – Maxima: 6/12°C
- Very mild, at times moderate to fairly heavy rain.
📅 Wednesday, 17 December
- Precipitation: 10–15 L/m²
- Minima: 3/9°C – Maxima: 6/12°C
- Very mild, occasional moderate showers.
📅 Thursday, 18 December
- Precipitation: 10–20 L/m²
- Minima: 3/9°C – Maxima: 5/11°C
- Still mild, frequent moderate rain.
📅 Friday, 19 December
- Precipitation: 5–10 L/m²
- Minima: 3/9°C – Maxima: 4/10°C
- Still fairly mild, occasional light rain/showers.
📅 Saturday, 20 December
- Precipitation: 3–10 L/m²
- Minima: 2/8°C – Maxima: 3/9°C
- Fairly mild, occasional light precipitation.
📅 Sunday, 21 December
- Precipitation: 3–4 L/m²
- Minima: -1/5°C – Maxima: 3/9°C
- Seasonal temperatures, very light precipitation.
In the High Ardennes: possible wet snow.
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METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Update – 5 December 2025
🗓 Period from 19 to 28 December — Christmas Week
Recent atmospheric modelling points to a calmer, high-pressure-dominated pattern during Christmas week. Under winter anticyclones, fog and low clouds are likely to be widespread, occasionally limiting sunshine. Temperatures would gradually decrease but remain slightly above seasonal norms.
🗓 Week from 29 December to 4 January — New Year Week
The high-pressure system may shift northward, introducing a more continental and progressively colder airflow. The weather would stay calm and dry, with frequent morning fog and low clouds, but with more afternoon bright spells. Temperatures would return to near-seasonal values, especially south of the Sambre–Meuse line.
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Weather Outlook for 3 months
Update 26-11-25
December 2025: a rather mild start to winter, no clear precipitation signal
Temperatures: positive anomaly of +0.5°C to +1.0°C. Few lasting cold spells; alternating polar incursions and milder phases, similar to November. High confidence in above-average temperatures.
Precipitation: near normal, locally slightly below average in the north and east. Low confidence.
General pattern: prevailing west–southwest flow, alternating unsettled periods and calmer phases. Limited lowland snow, but regular snowfall at higher elevations.
January 2026: more contrast, unsettled and generally mild
Temperatures: continued thermal surplus (+0.5°C to +1.0°C). Some short-lived wintry episodes possible due to continental cooling. Probability of mild conditions dominating: > 60%.
Precipitation: slight excess (+5% to +20%) in western, southern and upland areas; elsewhere near normal. Medium confidence.
General pattern: renewed active Atlantic flow with successive disturbances, risk of windstorms and notable snowfall in mid-mountains. In lowlands, snow remains scarce and brief.
February 2026: more variable, closer to seasonal norms
Temperatures: near normal to slightly above (0 to +0.5°C), with large scenario spread and potential for brief cold spells. Low confidence.
Precipitation: around normal, possibly slightly wetter in the east and uplands. Low confidence.
General pattern: alternating high-pressure phases and unsettled returns. Colder outbreaks linked to a weakened polar vortex remain possible, particularly late in the month.
Winter 2025–2026: summary
A slightly milder-than-average winter with a mean anomaly of +0.5°C to +1.0°C. Precipitation near seasonal norms overall — drier in December, wetter in January.
Dominant scenario: frequent Atlantic influence, regular disturbances, cold spells generally short-lived. La Niña and a potentially weakened polar vortex may still promote sharper wintry episodes, especially in January, without altering the overall mild signal.
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Update to BMCB Multimodel – since 1 October 2025
from ICON (replace location left above )
from ECMWF (replace location left above)