General Weather Evolution for the Next 6 Days
Europe: Analysis & Forecast maps (6 days)
Update as of 15 June 2025 at 12 PM
Summer settles in: dry and sunny with pleasant warmth – heat returning by the weekend
Cooler but stable maritime air has spread across our regions, while a high-pressure system measuring 1030 hPa is gradually approaching the western English Channel from the Atlantic. Over the next few days, this anticyclone will extend its influence across the Benelux and Germany.
This will usher in dry, mild and increasingly sunny weather, with comfortable temperatures and no extremes.
By midweek, the high will shift over the North Sea, strengthening slightly to 1031 hPa, before moving towards southern Scandinavia over the weekend. This evolution will turn the airflow to the northeast, then to the east, drawing in much drier and warmer continental air from southern Germany.
As a result, temperatures will rise noticeably under abundant sunshine, with highs in the lowlands potentially reaching or exceeding 30°C again by the weekend.
36-hour forecast (Chart)
(According to deterministic and operational models: MULTIMODEL BMCB)
(These forecasts are generally updated every days)
Weather Update – 15 June 2025 at 09:00
🌧 Expected precipitation (next 36 hours):
- North of the Scheldt: 0 L/m²
- Between the Scheldt and Sambre-Meuse: 0 L/m²
- South of Sambre-Meuse: 0 L/m²
🔍 Weather outlook
Today
Morning:
Sunny along the coast. Elsewhere, variable skies with clear spells (20–50% cumulus/stratocumulus/cirrus) and more cloud cover (70–100% stratocumulus/altostratus/cirrus) mainly south of the Meuse.
💨 Northwest to westerly winds with gusts of 20–40 km/h.
Afternoon:
Plenty of sunshine in West Flanders. Elsewhere, a mix of sunshine and cumulus (0–30%), but in eastern Liège, Namur, and Luxembourg, skies remain very cloudy (90–100% stratocumulus/altostratus/cirrus).
💨 Westerly winds with gusts of 25–45 km/h.
🌡 Highs: 18–21°C along the coast, 17–20°C in the Ardennes, 20–24°C elsewhere.
Evening:
Partly cloudy over both Flanders and Antwerp (10–70% stratocumulus/altocumulus), mainly clear skies elsewhere.
💨 Northwest to west winds (10–20 km/h), shifting west-southwest in West Flanders (20–40 km/h).
Tonight:
Often clear, though some stratus may form over the Liège highlands.
💨 Southwesterly winds (5–15 km/h), westerly in West Flanders (15–25 km/h).
🌡 Lows: 10–16°C, locally down to 2–10°C in valleys south of the Sambre-Meuse axis.
Tomorrow
Morning:
Very sunny along the coast. Elsewhere, partly cloudy with 50–70% stratocumulus/cumulus and sunny intervals.
💨 Westerly to northwesterly winds with gusts of 10–30 km/h.
Afternoon:
Bright sunshine in both Flanders and Antwerp. Elsewhere, a mix of cumulus (50–70%) and sunny breaks.
💨 Westerly to northwesterly winds with gusts of 15–35 km/h.
🌡 Highs: 18–21°C along the coast, 19–22°C in the Ardennes, 23–26°C elsewhere.
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(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)
Update 15-6-25 8am
General Forecast (6 Days + Outlook)
Heading for the first heatwave of the year?
Next week is shaping up to be decidedly summery. Cumulus clouds, still present from late morning to mid-afternoon, will gradually become scarcer, allowing the sun to dominate. From Friday onwards, a burst of hot air could sweep across the country, peaking between Saturday and the start of the following week.
Temperatures may locally reach 33 to 34°C in lowland areas, with these tropical conditions bringing an increased risk of thunderstorms by Sunday and early the following week.
Forecast highs:
- Monday: 20 to 25°C
- Tuesday: 22 to 27°C
- Wednesday: 23 to 28°C
- Thursday: 21 to 28°C
- Friday: 25 to 30°C
- Saturday: 27 to 33°C
- Sunday: 27 to 34°C, depending on storm activity.
If this warm spell persists into the new week, it could meet the criteria for Belgium’s first official heatwave of the year. According to the RMI, this requires at least five consecutive days at 25°C or higher in Uccle, including at least three days with highs of 30°C or more.
The week after looks a touch more bearable, with temperatures ranging from 23 to 30°C in central Belgium, and the possibility of a few scattered thunderstorms. All in all, summer is clearly setting in across the country.
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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.
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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
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