General Weather Evolution for the Next 6 Days
Europe: Analysis & Forecast maps (6 days)
Update 30-8-25 at 12 AM – Evolution of the Weather Pattern
Atmospheric evolution
A deep storm depression (974 hPa) will move within the next 24 hours from the nearby Atlantic towards the Hebrides (Scotland), filling slightly on Monday (981 hPa). It will maintain over our regions a mild south to south-westerly flow, accompanied by a rain-bearing disturbance overnight, lingering locally into Sunday across inland areas.
On Monday evening and Tuesday, a new low-pressure system (1002 → 993 hPa) will deepen from the central Atlantic towards the southwest of the British Isles, reaching England and the North Sea on Wednesday (998 hPa). The associated frontal system will cross our regions during the night from Tuesday to Wednesday.
By Wednesday afternoon, a secondary depression (994 hPa) will reach Brittany before moving northeastwards (993 hPa), bringing further unsettled rainfall on Thursday.
Towards the end of the week, the mild south-westerly flow will persist, though in a less disturbed and therefore drier pattern.
36-hour forecast (Chart)
(These forecasts are generally updated every days)
Update – 30 August 2025 (09:00)
(Multimodel BMCB: ICOND2 – AROMEHD – ALADIN)
🌧 Rainfall forecast (next 36 hours)
- North of the Scheldt: 2 to 4 L/m²
- Between Scheldt and Sambre-Meuse: 2 to 6 L/m²
- South of Sambre-Meuse: 1 to 9 L/m²
Detailed forecast
📍 Today
🔹 Morning: clear spells at first in western Hainaut, Flanders, Antwerp and Limburg. Later, mostly cloudy (90-100 % cumulus/stratocumulus), except in West Flanders, Antwerp and southern Luxembourg province where sunshine will persist.
- Wind: southwesterly, gusts 30-40 km/h.
🔹 Afternoon: variable skies with 50-90 % cumulus and a risk of local showers, mainly over Flanders.
- Wind: southwesterly, 30-45 km/h, veering west/southwest in West Flanders.
- Highs: 21-23°C along the coast and inland; 18-19°C in the High Ardennes.
🔹 Evening: overcast (nimbostratus) with light rain in Flanders and western Hainaut; elsewhere 10-50 % altostratus and cirrus.
- Wind: southerly, 10-30 km/h.
🔹 Night: overcast skies with widespread rain.
- Wind: southerly, 15-35 km/h.
- Lows: 16-19°C at the coast, 17-18°C inland, 11-16°C south of the Sambre-Meuse, 10-11°C in valleys.
📍 Tomorrow
🔹 Morning: overcast with remaining rain over Limburg and south of the Meuse; some sunny spells possible at the coast.
- Wind: southwesterly, 25-35 km/h.
🔹 Afternoon: West Flanders: sunny intervals (30-80 % cumulus/stratocumulus/cirrus). Elsewhere: still overcast with 100 % nimbostratus and scattered rain, heavier in southern Luxembourg province.
- Wind: southwesterly, 20-40 km/h.
- Highs: 21-22°C at the coast, 20-22°C inland, 18-19°C in the High Ardennes.
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Forecast for the 6 to 15 coming days
Multimodel BMCB ( OPERATIONAL + ENSEMBLES ICON-GFS-ECMWF-AIFS-GCGFS ) (Chart)
Forecast of the range of temperatures, precipitations + general type of weather in Belgium
(These forecasts are generally updated every 2-4 days)
Update: 29 August 2025 – 15:00
🌍 Forecast for the next 6 days
(based on Multimodel BMCB: ICON – AIFS – ECMWF)
📅 Monday 1 September
🌡 Max: 17–25°C
🌧 Rain: North Scheldt 0.5–1 L/m² | Centre 0.5–3 L/m² | South 0.5–11 L/m²
💨 Southwest wind, gusts 30–50 km/h
- Morning: clear spells, denser clouds over Limburg and south Sambre–Meuse with rain (Luxembourg province).
- Afternoon: sunny intervals, a few showers, lingering rain in Liège/Luxembourg.
- Night: partly clear (30–70% stratocumulus).
📅 Tuesday 2 September
🌡 Max: 17–24°C
🌧 Rain: North Scheldt 2–5 L/m² | Centre 1–8 L/m² | South 1–5 L/m²
💨 South to southwest wind, gusts 30–50 km/h
- Morning: bright intervals, risk of showers.
- Afternoon: sunny spells with local showers.
- Night: increasing cloud (cirrus/altostratus from the west).
📅 Wednesday 3 September
🌡 Max: 16–23°C
🌧 Rain: North Scheldt 1–6 L/m² | Centre 1–2 L/m² | South 1–6 L/m²
💨 Southerly wind, gusts 45–65 km/h
- Morning: cloudy (stratocumulus–altostratus–cirrostratus).
- Afternoon: overcast, intermittent rain.
- Night: variable cloud, still wet in the east.
📅 Thursday 4 September
🌡 Max: 17–24°C
🌧 Rain: North Scheldt 6–11 L/m² | Centre 1–14 L/m² | South 0–11 L/m²
- Morning: overcast, rain.
- Afternoon: very cloudy with showers.
- Night: wide clear spells from the west.
🔮 Weather trend (5–12 September)
- Fri 5/9 → 18–23°C | 3–9 L/m²: mild, variable, showers.
- Sat 6/9 → 18–23°C | 0–2 L/m²: improvement, dry.
- Sun 7/9 → 20–26°C | 0 L/m²: very mild, dry, sunny.
- Mon 8/9 → 20–26°C | 0–1 L/m²: same.
- Tue 9/9 → 18–23°C | 3–5 L/m²: cooler, possible rain.
- Wed 10/9 → 16–22°C | 1–7 L/m²: seasonal, local rain.
- Thu 11/9 → 18–23°C | 0–2 L/m²: fairly mild, dry.
- Fri 12/9 → 19–25°C | 3–6 L/m²: very mild, a few showers.
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METEOCONSULT
BENELUX:
🔎 3–4 week outlook
Medium-term: 13 – 28 September
13 to 21 September: Return of the high-pressure system and calm weather
The prevailing scenario indicates the stable establishment of a high-pressure system, bringing generally calm weather with light winds and limited precipitation. With shortening daylight, morning fogs may increase in plains and valleys. Temperatures are expected to rise again, particularly in the afternoons, offering pleasant sunny periods.
22 to 28 September: Toward more summery conditions
Longer-term trends suggest a possible return of summer-like conditions by the end of the month. Under the influence of a very mild south-southwest flow, temperatures could remain pleasant, providing clear and mild days. While this scenario is not yet certain, it hints at a milder and intermittently summery autumn.
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Update 25-8-25
Weather Outlook for 3 months
- September: marked variability at the start of the meteorological autumn
Temperature (anomaly): slightly above average (≈ +0.5 to +1.0 °C), consistent with the European seasonal model trend (ECMWF/C3S).
Precipitation (anomaly): rather dry. September is likely to be very contrasting, with a disturbed start followed by a more anticyclonic regime. - October: near-average temperatures and little rainfall
Temperature (anomaly): close to seasonal norms, under more frequent anticyclonic influence. This could see the first autumn frosts appearing.
Precipitation (anomaly): trend close to normal. - November: a very mild month
Temperature (anomaly): above seasonal averages (+0.5 to +1 °C on average).
Precipitation (anomaly): uncertainty remains over the possible return of a more disturbed oceanic flow, which would bring beneficial rainfall.
from ICON (replace location left above )
from ECMWF (replace location left above)