Forecasts for the next 42 hours
(BMCB Multimodel: ICOND2 – AROME-HD – ALADIN)
(These forecasts are usually updated daily)
Weather Summary – 1 April 2026
Precipitation totals over the next 42 hours will remain generally light across the country. Amounts are expected to reach 1 to 4 L/m² north of the Scheldt, 1 to 3 L/m² between the Scheldt and the Sambre-Meuse line, and 0 to 3 L/m² south of it.
Wednesday begins locally misty, especially across northern and eastern areas. Limburg and regions east of the Meuse already benefit from clearer spells, while elsewhere skies remain mostly cloudy with some light local rain.
As the day progresses, conditions will become brighter with increasing sunshine, although cloud bands will persist over central and western areas. Highs will reach around 14°C along the coast, 12 to 15°C inland, and 9 to 11°C over the Ardennes high ground, with light to moderate easterly to southeasterly winds.
During the evening and overnight, skies will often be partly clear, though local fog may redevelop inland. Thicker cloud will affect the western half of the country, where light rain remains possible. Minimum temperatures will vary considerably: around 9°C at the coast, 2 to 9°C in lowland areas, 1 to 5°C south of the Sambre-Meuse line, and marked frost in some valleys, with values dropping between 0 and -7°C.
On Thursday, skies will remain mostly cloudy to overcast with occasional light rain. Some morning clear spells will persist over eastern Liège and Luxembourg provinces.
During the afternoon, conditions will gradually turn more variable with clearer breaks, especially across Antwerp, western Brabant, western Hainaut and Flanders. Temperatures will drop noticeably, with highs around 8°C at the coast, 10 to 11°C inland, and 6 to 10°C in the Ardennes. Winds will shift to west to northwest, moderate and occasionally stronger near the coast.
By evening, the last showers will linger over the Ardennes before conditions improve from the west with partial clearing. Temperatures will remain cool, ranging between 4 and 7°C in the plains, with a continued risk of frost in some sheltered valleys.
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National Thermal Indicator
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Weather Update – 1 April 2026
Clear warming trend after a few remaining cool days
Until 3 April, the Belgian national thermal index will remain slightly negative, between -3 and 0. In this context, daytime temperatures will stay relatively cool for the season, with highs generally ranging from 7 to 14°C depending on the region. Light frost will remain possible locally in lowland areas (0 to -2°C), while more pronounced frost may occur in valleys south of the Sambre–Meuse line, with lows between -2 and -7°C. ❄️
From 4 April onward, a gradual warming trend will set in. The thermal index is expected to rise between +1 and +5, reflecting the progressive establishment of a milder air mass. 🌤️
Under these conditions, temperatures during the Easter weekend should become noticeably more pleasant, generally between 12 and 19°C, with a possible peak of marked warmth on Tuesday 7 April, when values could locally reach 18 to 24°C. 🌼
Around 9 April, the thermal index is expected to return to near-neutral values (+1/-1), bringing temperatures closer to seasonal norms, typically between 8 and 15°C. 🌦️
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General Weather Evolution for the Next Days over the Ocean and Europe
Europe: Analysis & Forecast maps
Weather Update – 1 April 2026
A ridge of high pressure will move from west to east across the Benelux over the next 48 hours, weakening the influence of the cool and unsettled maritime air currently affecting our regions. This evolution will favour a gradual improvement in weather conditions.
The establishment of a high-pressure area over France and the Alps will then cause winds to turn southwesterly and later southerly.
From the Easter weekend onward, milder air will spread across the country, first from southwestern France and later more directly from the south.
Early next week, a high-pressure cell will shift towards Germany and Scandinavia. The flow will then turn between east and south, bringing mild, at times even very mild air. 🌤️
This pleasant period should, however, be interrupted midweek by the passage of an active cold front associated with a low-pressure system, bringing a temporary return to more unsettled conditions. 🌧️
Subsequently, the flow will swing back to the southwest, bringing cooler and markedly more unstable maritime air toward the end of next week, accompanied by more frequent rainfall. 🌬️
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Forecast for the coming days
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 – 1 April 2026
Weather Summary until 15 April
According to the BMCB multimodel (ICON, AIFS, GFS, and ECMWF), the coming days will feature an alternation of relatively calm periods and unsettled episodes, under a prevailing southwesterly flow maintaining generally mild temperatures.
Friday: skies initially variable, gradually becoming more overcast with a chance of light rain. Very cool for the season and fairly windy, with southwest gusts of 35–55 km/h.
Saturday: milder conditions. After a generally cloudy start with light local rain, clearings are expected in the afternoon. The southern wind remains noticeable, with gusts of 30–50 km/h.
Sunday: cloudy to variable with brief sunny intervals. Light showers remain possible in fairly mild and still windy conditions, with gusts from 40–60 km/h west to southwest.
Monday: calmer and mostly sunny, mild for the season, with no significant precipitation.
Tuesday: very mild with generally sunny weather, before a deterioration is expected midweek.
From Wednesday: a more unsettled sequence sets in. Rain, occasionally moderate, is expected, with locally higher accumulations. This wet trend continues until the end of the period, with multiple successive rainfall events.
Thursday to Saturday: precipitation becomes more frequent and sometimes persistent, especially Friday when locally heavy rain is possible. Initially mild temperatures gradually decline.
Weekend to mid-next week (13–15 April): changeable weather with regular rain or showers in a progressively cooler environment.
Summary: after a relatively mild and sometimes sunny start, the pattern evolves toward a wetter and more unstable regime, with recurring precipitation and decreasing temperatures from the second half of the period.
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Trend of 500 hPa anomalies (around 5500m) across Europe and the Atlantic Ocean
ALL Maps
Update 1 April 2026
Weather outlook from 13 to 27 April 2026: toward more stable spring mildness
The latest medium-range projections suggest the gradual establishment of a large high-pressure block between the polar regions, central Europe and the western Mediterranean during the week of 13–20 April. At the same time, low-pressure areas are expected to develop over northern Egypt and to the west of the British Isles.
In this configuration, our regions would lie along the western flank of the anticyclone, under the influence of a southerly to southeasterly flow. This would favour the advection of mild air, while the most active disturbances would mainly affect the British Isles, the English Channel and northwestern France.
For the period 20–27 April, high pressure would extend from the central Mediterranean towards Scandinavia, then to Greenland and northeastern North America, while a low-pressure system would settle west of Morocco.
This evolution would place much of western Europe under an easterly flow, mild to locally fairly warm and generally dry. Precipitation would become less frequent, with thunderstorm risk mainly confined to the Alps and southeastern France.
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SOURCE: METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Weather Outlook – Update of 28 March 2026
Week of 13–19 April: continued stable conditions
The period from 13 to 19 April could be characterized by generally calm and dry weather across the country. With often generous sunshine, temperatures would likely remain slightly above seasonal averages.
At this range, a temporary low-pressure development cannot be entirely ruled out, despite a predominantly anticyclonic trend. This scenario will need confirmation in upcoming updates.
Week of 20–26 April: towards the first thunderstorms of the season?
For late April, the large-scale European pattern remains uncertain. However, several signals point to a possible return to more unstable conditions, with low-pressure tendencies over the Iberian Peninsula and southern France.
In this context, following mild spring-like days, the first significant thunderstorms of the season could develop. This trend remains subject to further refinement.
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Weather Outlook for 3 months
Update – 25 March 2026
La Niña weakening, El Niño possible for summer
Ocean-atmosphere indicators in the tropical Pacific show that La Niña is gradually fading, with neutral conditions expected during spring. Multi-model projections suggest this pattern could favor the emergence of an El Niño event during summer.
This transition may lead to a more variable atmospheric circulation, influencing precipitation and temperature patterns across several regions, including Europe. As a result, the weather signal becomes more volatile and less predictable.
April: often influenced by anticyclonic conditions, turning relatively dry. Temperatures near to slightly above normal (+0.5 to +1°C). Risk of late frost early in the month. Below-normal rainfall.
May: stable and rather dry. Temperatures around +1°C above normal. Frequently pleasant conditions. Slight rainfall deficit.
June: potentially warm start to summer with frequent thunderstorm development. Temperatures +1 to +1.5°C above normal. Highly variable rainfall with strong regional contrasts.
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from ICON (replace location left above )
from ECMWF (replace location left above)