General Weather Evolution for the Next 6 Days
Europe: Analysis & Forecast maps (6 days)
Wednesday 18 June 2025, 12:00 PM
By midday Wednesday, a robust high-pressure system (1027–1028 hPa) was centered over Wales. It is shifting toward the North Sea and currently brings dry, sunny weather to our regions.
From Thursday onwards, drier continental air from northern Germany will be drawn in along the southern flank of the high.
This continental flow will warm up significantly by Saturday as the anticyclone shifts eastward toward central Europe, allowing warmer Mediterranean air to enter our area.
However, a weather shift is expected at the end of the weekend. On Sunday, a stormy cold front will form between the Massif Central and the Ardennes, moving eastward on Monday. It will be followed by a noticeably cooler but relatively stable oceanic flow from the west.
36-hour forecast (Chart)
(According to deterministic and operational models: MULTIMODEL BMCB)
(These forecasts are generally updated every days)
Update – 18 June 2025 at 9 AM
🌧 Expected Precipitation (next 36 hours)
• North of the Scheldt: 0 L/m²
• Between the Scheldt and Sambre-Meuse: 0 L/m²
• South of the Sambre-Meuse: 0 L/m²
☀️ Today
This morning, the sun will shine generously, although northern Flanders, the Antwerp region, Limburg and the north of Liège province will see some scattered high cirrus clouds (10–20%). In the uplands of Liège and southeastern Luxembourg, light cumulus clouds will also appear in similar proportions.
🌬 Light west to northwesterly wind with gusts of 10 to 20 km/h.
This afternoon, the coast will enjoy unbroken sunshine, while inland areas will experience 10 to 30% cumulus cloud cover.
🌬 Winds from northwest to north with stronger gusts of 15 to 35 km/h.
🌡 Maximum temperatures: 19 to 22°C along the coast, 23 to 27°C in the Ardennes, and 27 to 30°C elsewhere.
In the evening, the skies will clear completely, creating a tranquil atmosphere.
🌬 North to northeasterly winds, light to moderate (5 to 25 km/h).
During the night, the sky will remain starry, but low stratus clouds and fog banks will gradually form by the end of the night over western and central Flanders.
🌬 Winds between north and east with gusts of 5 to 20 km/h.
🌡 Minimum temperatures: generally 12 to 16°C, but between 5 and 11°C in valleys south of the Sambre-Meuse line.
🌞 Tomorrow
In the morning, the entire country will enjoy clear blue skies bathed in bright sunlight.
🌬 Winds from the northeast to east (gusts 15–25 km/h).
In the afternoon, the sunshine will continue unabated across the entire territory.
🌬 Northeasterly winds with gusts reaching 25 to 35 km/h.
🌡 Maximum temperatures: 21 to 24°C along the coast, 21 to 26°C in the Ardennes, and 26 to 28°C elsewhere.
*************************************************************************************************************************************************************************
(Chart)
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
(Usually the highest values are in urban areas, the lower Meuse valley, the Gaume and in the Campine, except in the cold season where these values occur mainly in the coastal area; the lowest values are largely expected on the highlands of the Ardennes)
(These forecasts are generally updated every 4 days)
Updated 18 June 2025 at 5:00 PM
Another heatwave on the horizon
After a stretch of summery weather, the coming days will see the sun continue to shine generously. A high-pressure system anchored over the North Sea is currently funnelling dry and moderately warm air from Denmark and northern Germany into our regions.
🌤 On Thursday and Friday, the weather will be splendid. Early morning lows will range from 6 to 12°C in the Ardennes and from 12 to 16°C in lowlands and coastal areas. In the afternoon, highs will reach 20 to 22°C at the seaside, 22 to 26°C in the Ardennes, and up to 30°C inland. A light to moderate northeast to east wind will blow at 20–40 km/h, depending on exposure.
🌡 Over the weekend, the centre of the high will slowly drift toward Central Europe, causing the wind to veer to the southeast and draw in much hotter, dry air from the northern Mediterranean. The sun will remain dominant, though some high and mid-level clouds may appear late in the day over Flanders and western Hainaut.
Saturday will be scorching, with temperatures climbing to 32 to 35°C in most areas, and 28 to 32°C in the high forests of the Ardennes. A searing start to summer.
🌩 Sunday begins with a mix of sun and high clouds as a weak cold front enters the scene. In the afternoon, isolated showers or thunderstorms may break out inland. Winds will turn southerly to southwesterly, picking up strength with gusts of 35 to 55 km/h.
🌧 Monday marks a significant change. A cooler, moisture-laden air mass from the Channel and Atlantic will bring more wind (up to 60 km/h) and a sharp temperature drop: 18 to 21°C at the coast, 21 to 23°C elsewhere, and 24 to 25°C still possible in the Gaume region. After a partly cloudy dawn, skies may turn increasingly grey with scattered light rain in northern Flanders.
🌥 Tuesday, the fresh oceanic air persists, keeping conditions cool and cloudy with patchy light rain. Temperatures will hover between 19 and 22°C, with up to 25°C in southern Luxembourg province under any clearing skies.
🔄 Outlook for the rest of the week
Temperatures may rise slightly, but conditions will remain unsettled with occasional showers. Forecast highs range between 20 and 26°C until the weekend, when drier weather could return.
----------------------------------------------------------------------------------------------------------
METEOCONSULT
Update 10-6-25
Medium-Term Weather Outlook
📆 Period from 20 to 29 June: High pressure holds — heatwave incoming?
The anticyclonic pattern is expected to persist over our region. The weather should remain generally summery, with temperatures often ranging from pleasant to warm. Some cloud cover may occur, especially in the western part of the country, but no significant deterioration is anticipated.
📆 Week of 30 June to 6 July: Predominantly warm conditions
The transition from June to July is likely to bring firmly established summer weather. Temperatures could rise further across the country, while stormy or unstable episodes are expected to remain rare or completely absent.
---------------------------------------------------------------------------------------------------------------
Update 11-6-25
Weather Outlook – July to September 2025
July 2025: hot with persistent storm risks
Our seasonal model forecasts temperatures +1 to +2°C above average, which is a notable anomaly. Thunderstorm activity remains a key feature, especially in the east of the country. Precipitation totals should hover near seasonal norms but with strong regional contrasts.
Forecasts vary between models: the CFS model also suggests a storm-prone pattern, while the MET Office and ECMWF lean towards a much drier scenario. The latter – combining heat and dryness – raises concerns about heatwave potential.
🔹 Key takeaway: July could be the hottest month of the summer, with unavoidable heat spikes likely broken by thunderstorm outbreaks.
August 2025: similar pattern – warm and stormy
Above-average warmth continues, though the anomaly may be less intense than in July (+1 to +1.5°C). Our model indicates increased rainfall, possibly linked to Atlantic low-pressure systems triggering showers and storms.
🔹 Key takeaway: Still a stormy month, somewhat less hot than July based on current guidance.
September 2025: trend towards more instability
Forecast reliability declines for this timeframe. However, our model still shows temperatures slightly above seasonal averages, but with more unsettled and changeable conditions likely to dominate.
🔹 Key takeaway: An increasingly unstable month, with heat gradually diminishing.
Copyright Luc Trullemans, only for publication on meteo-be.net & bmcb.info
--
Thermal anomalies (Charts)
City forecast from ECMWF (replace location left above)
City forecast from ICON (replace location left above )