Forecasts for the next 42 hours
(BMCB Multimodel: ICOND2 – AROME-HD – ALADIN)
(These forecasts are usually updated daily)
Update 11 April 2026
A weak to moderate disturbance will cross the country over the next 42 hours, bringing generally modest precipitation totals, slightly higher south of the Sambre–Meuse line. Expected amounts range from 0.5–3 l/m² north of the Scheldt, 0.5–7 l/m² between the Scheldt and Sambre–Meuse, and 2–9 l/m² further south.
Today begins fairly bright with increasing high cloud. Rain will reach Flanders and western Hainaut by late morning. The afternoon turns mostly cloudy with rain, although clearer spells may develop over western Flanders. Highs will reach around 13°C along the coast, 16 to 20°C inland and 14 to 16°C over the higher Ardennes.
During the evening, rain will persist in many areas, while skies gradually clear over Flanders and western Hainaut. Overnight conditions become quieter with partly clear skies, high cloud and patches of fog, especially south of the Meuse. Lows will drop to around 5°C at the coast, 3 to 6°C inland and 1 to 4°C in southern areas, with local frost possible in sheltered valleys.
Tomorrow will remain largely dry. The morning will be fairly sunny but veiled by high cloud, particularly over central and southeastern areas. During the afternoon, more cumulus and high cloud develop, with somewhat brighter conditions near the coast and southern Ardennes. Highs will reach around 14°C at the coast, 12 to 16°C inland and 10 to 12°C over higher terrain.
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National Thermal Indicator
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Update 11 April 2026
Over the next fifteen days, the Belgian national thermal index is expected to remain close to seasonal averages, generally fluctuating between 0 and +2. Under these conditions, maximum temperatures would typically range between 10 and 17°C across the country.
A milder spell is nevertheless likely between 15 and 21 April. The thermal index could temporarily rise to between +2 and +4, corresponding to daytime temperatures between 15 and 22°C over Belgium.
Following this milder interval, temperatures are expected to return to more moderate levels towards the end of the period.
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General Weather Evolution for the Next Days over the Ocean and Europe
Europe: Analysis & Forecast maps
Update 11 April 2026
Following the passage of a cold front on this Saturday, cooler maritime air from the Bay of Biscay will spread across our regions. As pressure falls over Germany, winds will turn northerly on Monday, bringing more unstable and occasionally unsettled conditions.
From Tuesday onward, however, a high-pressure ridge will develop from the North Sea towards the southern Bay of Biscay. This will gradually stabilise the atmosphere, leading to drier conditions and a progressive day-by-day warming.
By the end of the week, dry and even milder continental air arriving from Germany will reinforce the more favourable trend.
Outlook for 18–25 April:
Anticyclonic influence is expected to persist for several days. Nevertheless, the continental air mass should gradually cool as the flow turns more northerly to north-easterly, with an increasing risk of precipitation around 21–22 April.
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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)
Update 11 April 2026
Overview based on the BMCB multi-model (ICON – AIFS – GFS – ECMWF)
The week will begin under unsettled conditions, with mostly cloudy skies on Monday and periods of rain or showers, though rainfall totals will remain modest. From Tuesday onwards, conditions will gradually become more variable with increasing sunny spells, while patches of fog may form overnight.
Wednesday looks largely dry and sunny, before cloud increases in the afternoon along the coast and in western Flanders. On Thursday, a mix of clouds and sunny intervals will accompany a gradual warming trend. Friday should turn fairly sunny and noticeably milder.
The following weekend is expected to remain largely dry, with little or no precipitation and very mild temperatures on Saturday, followed by mild conditions on Sunday. This pattern should persist into early next week with mostly dry and pleasant weather through 21 April.
From 22 April onward, a more unsettled phase appears likely, with periods of rain or showers, sometimes significant, and a noticeable cooling around 23 April. Conditions should remain unstable with further moderate precipitation through 24 April.
By 25 April, a relative improvement is anticipated, with less cool temperatures and generally limited rainfall.
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Trend of 500 hPa anomalies (around 5500m) across Europe and the Atlantic Ocean
ALL Maps
Update 9 April 2026
Outlook from 27 April to 11 May 2026
Medium-range projections indicate the persistence of a broad high-pressure block extending from Greenland across central Europe toward the Caspian region. At the same time, low-pressure conditions are expected to remain over the central Atlantic and northern Russia.
Within this pattern, our regions would lie on the southwestern flank of the anticyclonic system, under the dominant influence of a continental easterly flow. This setup would favour the establishment of dry and very mild air, with generally stable weather.
Rainfall and thunderstorm activity would mainly affect southern Europe, particularly eastern Spain, much of the Canary Islands, the Maghreb and the eastern Mediterranean basin.
For the period from 4 to 11 May, high pressure would persist over Greenland and the northern Atlantic as well as over eastern Europe. Our regions would then experience a very mild to warm southeasterly flow.
Rain and thunderstorms would become more frequent over the southwest of the British Isles, western France and the Iberian Peninsula, as well as over Scandinavia, while persisting locally over the central and eastern Mediterranean.
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SOURCE: METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Weather Trend – Update 10 April 2026
Potential late-April warm spell followed by a more unsettled early May
Majority scenarios suggest that during the week of 27 April to 3 May, a warm and dry southerly flow may develop, leading to a renewed and marked rise in temperatures. Under this setup, near-summer conditions could temporarily establish across France and the Benelux, with locally high values possibly reaching or exceeding strong heat thresholds.
However, this evolution remains uncertain. Alternative model solutions favour a cooler and wetter scenario, which would limit the warming.
For the period from 4 to 10 May, covering early May holiday breaks, the trend points toward more disturbed conditions. The return of an unstable and moist Atlantic flow would bring more changeable weather. As temperatures would remain relatively mild, convective activity and thunderstorms could develop, particularly in a southwesterly flow.
This four-week outlook, updated every Thursday or Friday, remains subject to significant changes in upcoming revisions.
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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)