Forecasts for the next 42 hours
(BMCB Multimodel: ICOND2 – AROME-HD – ALADIN)
(These forecasts are usually updated daily)
Weather Bulletin – Update 24 March 2026
Precipitation (next 42 hours)
- North of the Scheldt: 4–10 L/m²
- Between the Scheldt and Sambre-Meuse: 4–11 L/m²
- South of Sambre-Meuse: 7–21 L/m²
Today
Overcast in western Flanders, elsewhere mostly cloudy or high overcast. Southwesterly winds with gusts of 30–50 km/h.
Afternoon: largely cloudy. Highs: 12°C at the coast, 14–18°C inland, 11–13°C in the Ardennes.
Night: rain moving in from the coast, followed by showers. Winds turning W–SW with gusts up to 65–75 km/h along the coast.
Tomorrow
Morning: variable with showers, especially inland.
Afternoon: frequent showers, some thundery with graupel and wet snow over higher ground.
Highs: 9°C coast, 6–10°C inland, 4–6°C Ardennes.
Evening remains unsettled with continued showers and a gradual easing of the wind.
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National Thermal Indicator
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Persistent cool conditions into early April
Update – 25 March 2026
The Belgian national thermal indicator is expected to reach a value of around –4 on Thursday, corresponding to daytime highs ranging between 2 and 9°C across the country. This reflects the arrival of a noticeably cooler air mass for late March.
For the subsequent period, extending into the first ten days of April, the indicator should generally fluctuate between +1 and –2. Daytime temperatures are expected to range between 7 and 13°C on the coolest days, and 10 to 16°C during milder intervals.
The coldest nights are anticipated between 26 and 27 March, around 29 March, and likely near 3–4 April. Marked frost is expected in the Ardennes, while local frost will also remain possible across lowland areas.
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General Weather Evolution for the Next Days over the Ocean and Europe
Europe: Analysis & Forecast maps
UPDATE – 23 March 2026
Brief mild spell before a return to unsettled conditions
Mild air for the season will spread into our regions on Tuesday from western France, bringing a short-lived spell of spring-like conditions.
From Tuesday night into Wednesday, an active frontal system will move across the Benelux, bringing widespread rain. It will be followed by significantly cooler and more unstable air, leading to the development of frequent showers on Wednesday and Thursday along the western flank of a low-pressure system over Scandinavia (around 975 hPa).
On Friday, a transient ridge of high pressure will bring a temporary lull with drier conditions. However, this improvement will be short-lived, as another rain-bearing system is expected during the following night.
By Sunday, a new ridge of high pressure should extend over the region, suggesting a gradual stabilisation of the weather.
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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 Bulletin – Update of 20 March 2026
Summary of the meteorological evolution based on the BMCB multi-model
(Based on operational runs and ensembles ICON, AIFS, GFS and ECMWF)
Spring-like calm before a marked weather change midweek
A high-pressure ridge will persist throughout the weekend, extending from the Azores to Russia. Along its southern flank, dry and relatively mild continental air will be advected from the east to northeast.
After morning fog dissipates — particularly on Saturday across Limburg, Liège, Namur and locally Luxembourg — sunshine will quickly dominate. Some cloudiness will develop, more pronounced near the coast and later over the Ardennes and Gaume.
Temperatures will reach around 11°C over eastern high terrain and 15 to 16°C inland. Along the coast, values will remain limited to 8–9°C due to a moderate northerly to northeasterly wind (gusts 30–40 km/h).
Saturday night into Sunday will be mostly clear, though fog will redevelop, especially across central areas and valleys. Lows: 4–7°C at the coast, 0–4°C inland, with frost returning in Ardennes valleys (0 to -5°C).
On Sunday, morning grey conditions will clear slowly in the west, while elsewhere it will be mostly sunny with a few cumulus clouds. Highs: 11–13°C at the coast and in higher elevations, 15–16°C elsewhere.
Monday remains calm and dry with some high cloud.
On Tuesday, the high shifts towards France and the western Mediterranean. Winds turn southwesterly and strengthen (gusts 30–50 km/h). Milder air pushes temperatures up to around 18°C, especially in the Campine and central regions. However, a deterioration follows overnight with an active cold front bringing widespread rain.
Wednesday turns cooler and unsettled, with westerly winds (gusts 45–55 km/h), sunny spells and showers, some with small hail. Highs drop to 10–11°C inland and 6–7°C over higher ground. Showers intensify again overnight.
Thursday and Friday remain highly unstable with frequent showers of rain, graupel and even wet snow over the Ardennes. Temperatures range from 3 to 9°C with a strong northwesterly wind (gusts 45–65 km/h).
Outlook for next weekend: continued northerly flow with frequent showers. Daytime temperatures remain low, while nighttime minima range from 3 to 6°C in Flanders and -3 to 3°C inland, with a persistent risk of frost.
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Trend of 500 hPa anomalies (around 5500m) across Europe and the Atlantic Ocean
ALL Maps
Weather Outlook – Week of 6 to 13 April 2026
Latest projections at mid-tropospheric levels indicate the development of a լայն anticyclonic system extending from Greenland across Scandinavia to the British Isles, while a منخفض pressure area is expected to persist over southeastern Europe.
Within this large-scale pattern, our regions would be influenced by a northeasterly flow. This continental airmass is likely to bring generally dry conditions, with temperatures close to seasonal averages and no significant anomalies.
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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 – 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)