https://www.bmcb.be/communication-communicatie/
Forecasts for the next 42 hours
(BMCB Multimodel: ICOND2 – AROME-HD – ALADIN)
(These forecasts are usually updated daily)
Update
****************
National Thermal Indicator
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Aktualisierung von
****************
General Weather Evolution for the Next Days over the Ocean and Europe
Europe: Analysis & Forecast maps
Update
*****************
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
*************
Trend of 500 hPa anomalies (around 5500m) across Europe and the Atlantic Ocean
ALL Maps
Update 19 April 2026
For the period from 4 to 11 May, a blocked synoptic pattern is expected to develop across Europe. High pressure would persist over Greenland, Russia and south of the Azores, while a low-pressure core evolves over Western Europe.
Within this setup, mild to very mild air would spread across France and the Benelux, as well as large parts of Germany, the Alpine region, Italy and the Balkans.
However, this air mass would remain unstable. The heaviest precipitation is expected over northern Portugal and Spain, while thundery conditions may develop over the western Mediterranean basin, southeastern France and northern Italy.
Conversely, a drier signal is likely to persist over northern Germany and Scotland.
Across our regions, precipitation amounts should remain close to seasonal averages, without significant excess.
**************
SOURCE: METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Weather Trend – Update 17 April 2026
Unsettled start to May, possible improvement around mid-month
Current projections indicate a dominant low-pressure system between the Iberian Peninsula and the nearby Atlantic during the first week of May. This setup would advect moist air towards western Europe and our regions, promoting generally unsettled conditions.
Between 4 and 10 May, showers and thunderstorms would become more widespread, mainly during the daytime. This instability would occur in relatively mild conditions, with temperatures slightly above seasonal averages for the early-May holiday period.
For the week of 11 to 17 May, pressure is expected to remain relatively low over western Europe, potentially maintaining the unsettled pattern with further thunderstorm activity across much of the country. However, scenarios also suggest a gradual decrease in instability around mid-May, allowing for the possible return of calmer conditions nationwide, with temperatures close to seasonal norms.
This four-week outlook, updated every Thursday around 17:00, remains subject to significant changes with each new update.
***************
Weather Outlook for 3 months
Seasonal Update – 17 April 2026
Warmer and more unstable summer possible amid La Niña to El Niño transition
The global climate background is evolving as La Niña weakens in the tropical Pacific. Neutral conditions are expected during spring, favouring the emergence of an El Niño episode during summer. Multi-model projections suggest this event could intensify toward the end of the year, contributing to further increases in global temperatures.
This transition may promote a more unstable atmospheric circulation, increasing variability and reducing forecast confidence.
May: relatively stable and rather dry, with temperatures around +1°C above normal and slightly below-average rainfall.
June: potentially warm start to summer with frequent thunderstorm development and regionally variable rainfall, overall near normal.
July: marked warmth with enhanced thunderstorm activity, locally heavy rainfall and totals possibly about 20% above average.
**************
from ICON (replace location left above )
from ECMWF (replace location left above)