Forecasts for the next 36 hours
(chart)
(These forecasts are usually updated daily)
Weather – Update +36 h | 28 December 2025 | 10 a.m.
(BMCB multi-model analysis: ICOND2 – AROMEHD – ALADIN)
Dry conditions with clouds and sunny spells under continental influence
The next 36 hours will be entirely dry, with no measurable precipitation expected anywhere in the country. From northern regions down to south of the Sambre–Meuse line, rain gauges will remain empty.
Today, skies are often cloudy to very cloudy, though broad sunny intervals already develop over the Campine, the Liège area and south of the Sambre–Meuse line.
During the afternoon, sunshine will become more widespread across most regions, except in West Flanders, where cloud cover is likely to linger.
An easterly to north-easterly wind will blow at moderate strength, with gusts of 20 to 35 km/h.
Maximum temperatures will reach around 6°C along the coast, 3 to 6°C across inland lowlands, and 2 to 7°C south of the Sambre–Meuse line.
During the evening, skies will clear significantly, setting the stage for a quiet but cold night. After an initially clear start, low clouds and fog may form towards the end of the night, especially over the Campine.
Minimum temperatures will fall to about 1°C at the coast, –5 to 0°C inland, generally –1 to 0°C south of the Sambre–Meuse line, with locally down to –10°C in sheltered valleys.
Outlook for tomorrow
In the morning, fog and low stratus clouds will spread across most regions north of the Meuse and the Sambre.
By the afternoon, Belgian Luxembourg will remain largely sunny, while elsewhere skies will stay mostly cloudy to overcast, with only a few local breaks.
Winds will be light to moderate, from the north to north-east, or variable.
Maximum temperatures are expected to reach around 6°C at the coast, 0 to 5°C inland, and 0 to 4°C in the Ardennes.
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National Thermal Indicator
(Chart)
MULTIMODEL BMCB
(These forecasts are generally updated daily)
28 December 2025 | 10 a.m.
National temperature signals point to a firmly established winter pattern over the next two weeks, without marked extremes but clearly leaning towards cool to cold conditions. The thermal index is expected to fluctuate between neutral (0) and –3, reflecting a generally chilly atmosphere with noticeable contrasts between daytime and nighttime temperatures.
During the day, maximum temperatures will typically range between 0 and 7°C in the milder phases. Colder spells will restrain daytime values to between +3 and –4°C. The wintry feel will be accentuated above all by cold nights and mornings that will often be marked by frost.
At night, minimum temperatures during the coldest episodes will commonly fall between –6 and 0°C. Under calm and clear conditions, more severe frost is possible in valleys east of the Sambre–Meuse axis, where temperatures may drop to between –7 and –10°C. By contrast, the mildest nights will generally see minima between +5 and –2°C.
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General Weather Evolution for the Next Days
Europe: Analysis & Forecast maps (6=>? days)
Update – 28 December 2025 | 2 pm
The north-easterly to easterly airflow currently affecting our regions will gradually veer towards the north and then the north-west. This shift is linked to the slow westward retreat of the high-pressure system, which is expected to become centred south of Iceland over the coming days.
Within this evolving pattern, air masses will increasingly arrive from the North Sea. They will be more humid, at times promoting the development of low-level stratus cloud and fog, particularly in the lower layers of the atmosphere.
The dominant feature shaping weather conditions in the days ahead will be a dynamic low-pressure system, with a central pressure of around 975 hPa. Around New Year’s Eve and on New Year’s Day, this depression will move from the Norwegian Sea towards southern Scandinavia. It will induce a rapidly unstable west to north-westerly flow across the British Isles and the North Sea.
As a result, showers will gradually develop, occasionally bringing rain, sleet or soft hail, while snow is expected to fall more readily over the higher ground of the Ardennes, signalling a more distinctly wintry atmosphere at the turn of the year.
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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)
Weather Update – 28 December 2025 | 4 pm
Summary of the weather evolution
based on the BMCB multimodel (operational models and ICON – AIFS – ECMWF ensembles)
The end of the year and the opening days of January are set to unfold under a hesitant winter pattern, marked by alternating cool, relatively dry spells and increasingly unsettled conditions. Snow will play a recurring role, particularly across the higher ground of the Ardennes. Overall, temperatures remain cool to cold, with often changeable weather and a gradual deterioration later in the period.
📅 Tuesday, 30 December
A cool and generally quiet day. Skies will alternate between sunny intervals and cloudier spells, more frequent across the west and north.
During the evening and overnight, light precipitation will move in from the north: rain or sleet in lowland areas, snow or wet snow above around 300 m in the Ardennes.
Temperatures: –4 to +2°C in the morning, 0 to 6°C during the afternoon.
📅 Wednesday, 31 December
Conditions remain cool, under variable cloud cover. Bright spells will alternate with showers, particularly across Limburg and the Liège region, falling as sleet or snow above 400 m.
Temperatures: –5 to +1°C in the morning, 0 to 6°C by day.
📅 Thursday, 1 January
New Year’s Day will begin under a mostly overcast sky, with scattered showers. Light snowfall or wet snow will be possible in the Ardennes from 300–400 m upwards.
Overnight, the weather will deteriorate further as more widespread precipitation develops: rain in lowland areas, sleet from 200–300 m, and snow above 400–500 m.
Winds will strengthen, with gusts of 40 to 60 km/h, reaching 70 km/h along the coast.
Temperatures: –4 to +2°C in the morning, –1 to +5°C in the afternoon.
📅 Friday, 2 January
Seasonal but very changeable and windy. Showers of rain or sleet in the lowlands, wet snow from 200–300 m and snow above 400–500 m.
Wind gusts of 45 to 55 km/h from the southwest to west.
Temperatures: –1 to +5°C in the morning, 1 to 7°C during the afternoon.
📅 Saturday, 3 January
A more distinctly wintry feel sets in. Light to moderate precipitation will fall mainly as snow across the Ardennes and as wet snow in lowland areas.
Temperatures: –3 to +3°C in the morning, –1 to +5°C in the afternoon.
🔮 Likely trend (4–11 January)
The period is expected to be often cold to fairly cold, at times unsettled.
The Ardennes may experience occasionally significant snowfall, while lowland areas will see a mix of rain, sleet and snow depending on intensity and temperature.
Night-time frosts will become more frequent and locally severe, especially in the Ardennes valleys where minima may drop to –10 to –8°C.
Daytime highs will generally range between –2 and +6°C, confirming a persistently wintry pattern across the country.
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Forecast anomalies at 500 hPa
(mid-troposphere = 5,000–6,000 m altitude)
( charts )
Weather Update – 28 December 2025 | 10:00
At the outset of the final week of the year, an in-depth analysis of 500 hPa geopotential height anomalies derived from the ensemble forecasts of the two major prediction systems, ECMWF and GEFS, has been conducted. One conclusion emerges rapidly: beyond a certain forecast horizon, the scenarios diverge significantly, reducing their overall robustness. For this reason, the present analysis focuses on the next three weeks, rather than on six-week projections.
The transition into the new year and the first ten days of January would likely be characterised by a disturbed to unstable circulation, dominated by air masses of polar origin. The prevailing flow would most often be north-westerly to northerly, under the influence of a high-pressure system located near Iceland and the northern Atlantic. At the same time, a broad low-pressure zone would extend from western Russia and the Baltic States, across central Europe and the Maghreb, towards the oceanic regions between the Canary Islands and the Azores.
During the second decade of January, the models suggest a notable shift: the anticyclonic cell would tend to move towards Greenland and the polar regions, while also stretching eastwards towards western Russia. Low-pressure systems would, meanwhile, become more active over France and the Alpine region. Such a configuration would favour the establishment of a north to north-easterly flow, advecting significantly colder air into our regions.
This cold air could originate either from the Norwegian Sea and western Scandinavia, or from the Baltic Sea, transported via southern Scandinavia, the Baltic States and western Russia. In this context, snowfall would be possible, pointing towards a more wintry pattern consistent with seasonal norms.
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SOURCE: METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Weather outlook – 9 to 25 January 2026
9–18 January: winter uncertainty, possible milder and wetter influence from the west
Medium-range forecasts still point towards predominantly wintry conditions, driven by a dominant northerly flow bringing cold and unsettled weather.
Under such a pattern, snowfall at low elevations cannot be ruled out, particularly across northern and eastern regions.
At this lead time, however, uncertainty remains high, both regarding the severity of the cold and the strength of disturbances arriving from northern Europe.
At the same time, alternative scenarios suggest a gradual shift towards milder and wetter conditions, with recurring weather fronts and temperatures returning closer to seasonal averages, especially from the west.
19–25 January: distinctly milder and unsettled
For the period 19 to 25 January, model guidance increasingly supports the establishment of a disturbed west to south-westerly flow.
This setup would bring frequent spells of rain, interspersed with temporary calmer intervals.
Temperatures are expected to rise significantly, settling well above seasonal norms, signalling a sustained break from winter conditions.
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Weather Outlook for 3 months
Update 13-12-25 – 3:00 PM
January 2026: a wintry spell before milder conditions return
January 2026 is expected to open with a distinctly wintry phase, followed by a clear and lasting return to milder conditions during the second half of the month.
The nationwide temperature anomaly is estimated at +0.7°C, pointing to an overall mild month despite a cold start.
Early January could bring low temperatures and a risk of snowfall reaching lowland areas.
From mid-January onwards, Atlantic influences are likely to dominate, bringing temperatures well above seasonal averages.
In terms of precipitation, a slight surplus (+5%) is anticipated. Weather systems would be fairly frequent at the beginning of the month under a northerly flow, before shifting to a westerly to south-westerly Atlantic regime from mid-month.
As a result, January could become the wettest month of the 2025-2026 winter.
February 2026: slightly drier and still mild
February is expected to remain generally mild, with a temperature surplus close to +1°C.
Weather conditions are likely to be contrasting, with cold mornings followed by milder and often sunny afternoons, as high-pressure systems settle more frequently over the region.
Precipitation totals would be slightly below average (-10%), with less active weather systems due to the influence of persistent high pressure over continental Europe.
March 2026: finally a seasonal month?
March could finally deliver near-average seasonal conditions.
Temperatures are expected to fluctuate around climatological norms, with alternating cooler periods and milder, more unsettled phases, typical of early spring.
Precipitation should be close to average overall, though locally below normal, under the possible influence of high-pressure systems over northern Europe.
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Update to BMCB Multimodel – since 1 October 2025
from ICON (replace location left above )
from ECMWF (replace location left above)