As part of a new meteorological simulation exercise conducted for the experimental aircraft Climate Impulse ( www.climateimpulse.org ), which will undertake a virtual circumnavigation of the globe during the second half of March over several days, our operational resources will once again be temporarily mobilized.
Consequently, the forecast publications issued on the groups, pages, and websites of the Belgian Meteo Club Belge will be somewhat reduced during this period.
Forecasts for the next 42 hours
(BMCB Multimodel: ICOND2 – AROME-HD – ALADIN)
(These forecasts are usually updated daily)
Weather Update – 14 March 2026
Precipitation (next 42 hours)
- North of the Scheldt: 2–5 L/m²
- Between the Scheldt and the Sambre–Meuse valley: 2–18 L/m²
- South of the Sambre–Meuse valley: 2–18 L/m²
Today
Morning
Overcast to very cloudy with rain across most regions, except mainly dry conditions in West Flanders and western Hainaut.
At higher elevations sleet above 300 m and snow above 400–500 m.
Wind west to northwest, gusts 25–45 km/h.
Afternoon
Skies becoming more variable from the west, though showers of rain or graupel remain possible in many areas.
At higher levels sleet above 400 m and snow above 600 m.
🌡 High temperatures:
- around 8°C along the coast
- 3 to 9°C inland
- 0 to 2°C in the High Ardennes
Evening
A few rain or sleet showers will persist, with snow above 600 m in the Ardennes, while large clear spells develop elsewhere.
Tonight
Often partly cloudy to clear, with patchy fog forming inland.
Over the Ardennes, skies will remain more cloudy.
🌡 Low temperatures:
- around 1°C at the coast
- –2 to +3°C inland
- +1 to –3°C south of the Sambre–Meuse valley
Tomorrow
Morning
Fairly sunny with high-level cloud veils and still some cloud patches east of the Meuse.
Afternoon
Bright conditions with high clouds and some cumulus.
🌡 Highs:
- around 12°C along the coast
- 11–13°C inland
- 7–10°C in the Ardennes
Evening
Increasing cloud from the west, with rain spreading into much of western Belgium.
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National Thermal Indicator
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Update – 14 March 2026
The national thermal index, which dropped to a minimum of –3, is now expected to rise gradually and fluctuate between 0 and +2 until around 24 March.
Under these conditions, maximum temperatures should range from 10 to 17°C on the mildest days, while cooler days will generally see highs between 7 and 14°C. Overnight, light frost will remain possible inland, with locally moderate frost in valley bottoms south of the Sambre–Meuse axis.
Between 24 and 28 March, the index is expected to decline slightly again to between 0 and –2, bringing daytime temperatures mostly between 6 and 13°C.
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General Weather Evolution for the Next Days over the Ocean and Europe
Europe: Analysis & Forecast maps
UPDATE – 14 March 2026
A transient ridge of high pressure will stabilise the cool maritime air over our regions on Sunday. This quieter spell will be short-lived, however, as a rain-bearing disturbance is expected to reach the country during the night from Sunday to Monday and then move across the territory.
At the same time, a 1025 hPa high-pressure centre will develop over the southern Bay of Biscay and gradually move northeastwards, reaching Germany and Poland by Tuesday.
From Wednesday onwards, this anticyclone — with central pressure rising to 1027–1034 hPa — is expected to settle between the Baltic States and Scotland. Under this configuration, drier and progressively milder continental air will begin to spread towards our regions.
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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 – 14 March 2026
Summary of the expected weather evolution
based on the BMCB multi-model system (operational models + ensembles ICON – AIFS – GFS – ECMWF)
Monday 16 March
Precipitation/24h: 1–15 L/m²
Rather cool conditions with variable cloudiness. Showers of rain or graupel will move across the country, with some wet snow possible over the higher parts of the Ardennes. Showers will become less frequent in the afternoon across the west and north of the country.
A moderate westerly wind with gusts of 40–60 km/h is expected.
During the following night, a new area of rain will approach from the southwest.
Tuesday 17 March
Precipitation/24h: 0–3 L/m²
Milder weather. The sky will remain mostly cloudy to overcast with some light rain locally. A few clear spells may develop in the west during the afternoon.
Clearer conditions should become more widespread during the following night.
Wednesday 18 March
Precipitation/24h: 0 L/m²
Dry and largely sunny weather with some cumulus clouds over the southern part of the country. Mild.
Thursday 19 March
Precipitation/24h: 0 L/m²
Mostly sunny and mild.
Friday 20 March
Precipitation/24h: 0 L/m²
Continued dry, sunny and mild conditions.
Probable outlook
21–23 March: mostly dry, slightly cooler
From 24 March onward: increasing chance of rain and somewhat cooler conditions, with several weak precipitation episodes possible.
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Trend of 500 hPa anomalies (around 5500m) across Europe and the Atlantic Ocean
ALL Maps
Update – 11 March 2026
Outlook for late March
Projections at the level of the mid-troposphere suggest the development of a broad anticyclonic area extending across much of northern, central and eastern Europe. At the same time, a low-pressure zone would persist over the entire Mediterranean basin and North Africa.
In such a synoptic pattern, our regions would be influenced by a continental airflow that is relatively mild and rather dry. This setup would favour generally stable weather, with often calm conditions and little to no precipitation.
Early April
At the beginning of April, the anticyclonic cell would tend to shift westward, extending from Scandinavia toward Iceland and the British Isles.
Such an evolution would induce a continental north-easterly flow over our regions. The air mass would remain generally dry, while temperatures are expected to stay above seasonal averages.
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SOURCE: METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Update – 13 March 2026
Week of 30 March to 5 April: potential improvement but risk of spring frost
The most likely scenario suggests a return of high-pressure conditions at the beginning of April. This could bring calm and generally dry weather across the country in the run-up to the Easter weekend.
Such a pattern would probably lead to marked daily temperature contrasts: cool to cold mornings under clear skies followed by pleasant and distinctly spring-like afternoons.
However, the risk of late spring frost will need to be monitored closely, as it could locally prove damaging to vegetation that is already actively developing.
Week of 6 to 12 April: more unsettled weather before a possible rise in temperatures
During the following week, weather conditions may become more changeable again under the influence of a disturbed Atlantic flow.
Passing frontal systems would bring rainfall along with milder air masses. On a countrywide scale, temperatures could gradually move back above seasonal averages.
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Weather Outlook for 3 months
Update – 14 March 2026
Global context: La Niña weakening, possible shift toward El Niño
Ocean–atmosphere indicators across the tropical Pacific show that the La Niña episode is gradually weakening. Multi-model projections suggest a transition toward neutral conditions in the coming months, with increasing chances of an El Niño episode developing by summer.
Such a transition could eventually influence large-scale atmospheric circulation patterns and therefore affect temperature and precipitation regimes in several regions worldwide, including Europe.
April: a still variable start to spring
The westerly circulation is likely to remain fairly active across western Europe, leading to an alternation of disturbed spells and quieter periods under temporarily higher pressure.
Temperatures are expected to remain close to seasonal averages or slightly above, with an anomaly of about +0.5 to +1°C, which is relatively modest.
No dominant scenario currently emerges. In a marginal anticyclonic setting, the risk of late frost during clear nights remains possible.
Overall precipitation totals should remain near normal.
May: a more stable and rather mild pattern
Atlantic high-pressure systems may extend more frequently towards western Europe, favouring calmer and sunnier periods, occasionally interrupted by thunderstorms.
Temperatures would likely show a slight positive anomaly, around +0.5 to +1°C above normal, although this signal remains modest and indicates limited forecast confidence at this range.
Rainfall totals could become slightly below average.
June: a more summery, warm and thundery atmosphere
Early summer could be influenced by a recurring upper-level cold low over the Iberian Peninsula. This configuration would favour warm air advection towards our regions and frequent thunderstorm developments.
Although rainfall distribution would remain highly variable depending on storm activity, this setup could maintain a noticeable level of summer precipitation.
Temperatures are expected to be above normal, with a likely anomaly between +1 and +1.5°C.
Rainfall would largely depend on thunderstorms and may become locally above normal in the most affected areas.
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from ICON (replace location left above )
from ECMWF (replace location left above)