Forecasts for the next 36 hours (chart)
(These forecasts are usually updated daily)
Update 20/11/2025 – 08:00
Multimodel BMCB: ICOND2 – AROME HD – ALADIN
🌧️ Precipitation (next 36 hours)
- North of the Scheldt: 0.5–24 L/m²
- Between Scheldt and Sambre–Meuse: 0–9 L/m²
- South of Sambre–Meuse: 0.5–9 L/m²
Today
🔹 Morning
Very cloudy to overcast (80–100 %) with cumulus, stratocumulus, altostratus and altocumulus.
In Flanders, Hainaut, southern Namur and Belgian Luxembourg, complete cloud cover with rain, graupel, wet snow above 100–200 m and snow above 300–400 m.
Isolated thunderstorms possible near the coast.
Wind: SW–W (15–25 km/h), NW at the coast (30–50 km/h).
🔹 Afternoon
More sunny spells in the Campine, Liège, Namur and eastern Brabants.
Elsewhere, persistent cloudiness (80–100 %) with showers (rain, graupel, wet snow >200 m, snow >400 m).
Wind: variable or westerly (5–20 km/h), NW at the coast (25–45 km/h).
Max temperatures: ~6°C coast, 3–6°C inland, 0–2°C High Ardennes.
🔹 Evening
Variable skies (30–100 %) with isolated inland showers but more frequent, occasionally thundery, in West Flanders and West Hainaut.
Wet snow >100 m, snow >300 m.
Wind: variable or SW (5–20 km/h), NW on the coast (25–45 km/h).
🔹 Tonight
Cloudy or variable with local breaks.
Remaining showers mainly in West Flanders.
Fog formation inland.
Wind: variable or NE (5–15 km/h), NE at the coast (15–35 km/h).
Min temperatures: 4°C coast, 2 to –1°C inland, –1 to –4°C south of Sambre–Meuse.
Tomorrow
🔹 Morning
Cloudy (80–100 % stratus/stratocumulus), but sunny intervals in West Flanders and south of the Sambre–Meuse valley.
Wind: NE (15–25 km/h).
🔹 Afternoon
Wider and more general sunny breaks.
Wind: variable or NE (5–25 km/h).
Max temperatures: 7°C coast, 3–5°C inland, 0–2°C High Ardennes.
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General Weather Evolution for the Next Days
Europe: Analysis & Forecast maps (6=>? days)
Update 20-11-25 11h
An anticyclonic ridge will reach England and the North Sea on Friday, gradually stabilising the cold air over our regions.
Over the weekend, bands of rain will move eastward from the nearby Atlantic and the British Isles. They will cross the Benelux on Sunday under the influence of a depression deepening to 987 hPa, first over northern England and then, on Monday, over the southern North Sea (990 hPa).
This system will keep us in unsettled to unstable conditions, with temperatures remaining rather cool for the season, before shifting on Tuesday toward eastern France and the Mediterranean basin (999 hPa).
This evolution will place our regions back into a fresh north-to-northeast flow, with some precipitation. On the Ardennes heights, this may fall as wet snow or snow, before stabilisation returns with a new ridge approaching England and the Channel.
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National Thermal Indicator (Chart)
MULTIMODEL BMCB
(These forecasts are generally updated daily)
Update: 20-11-25, 12h
The national thermal indicator will fluctuate between 0 and –6°C until 27 November, resulting in daytime temperatures ranging from –1 to +6°C on the coldest days and +1 to +8°C on the slightly milder ones.
Over the next 72 hours, widespread night-time and early-morning frost is expected, with minimum temperatures generally between –6 and +2°C, and potentially lower in the valleys of the eastern regions.
After 27 November, a gradual warming trend sets in. The thermal indicator should rise to between 0 and +2°C, corresponding to daytime highs of 4 to 11°C and lows of 0 to 7°C across the country.
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Forecast for the coming days (Chart)
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 20 Nov 2025 – 14:00
📅 Saturday 22 November
0–3 L/m² • Min –6°C (–7/–12°C in Ardennes valleys) to 0°C • Max –1/+5°C
Cold with decent sunshine. Overnight: clouding over, rain in west and centre, locally starting as wet snow or snow inland.
📅 Sunday 23 November
5–20 L/m² • –4°C (–5/–10°C Ardennes) to +2°C • 1–7°C
Rather cold. Morning rain preceded by sleet or snow in the east; later widespread rain showers.
📅 Monday 24 November
5–30 L/m² • 1–7°C • 3–9°C
Seasonal weather, cloudy or variable with rain or showers.
📅 Tuesday 25 November
1–20 L/m² • 0–6°C • 2–8°C
Fresh and changeable, rain showers; some sleet possible on the highest Ardennes.
📅 Wednesday 26 November
0–5 L/m² • –2/+4°C • 1–7°C
Fresh and variable, some sunny spells; a few showers, occasionally sleet or snow north of the Ardennes and rainshowers near the coast.
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METEOCONSULT
BENELUX:
Weather Outlook for 3-4 weeks
Update 13-11-25
Period from November 28 to December 7: calmer and fairly mild trend
Forecast confidence for early December remains very low, as weather models are still highly divergent.
The prevailing trend points toward a strengthening anticyclonic ridge between the Atlantic and Central Europe, bringing calmer conditions.
Expect widespread grey skies, fog, and low clouds, with temperatures slightly above normal for the season.
Week of December 8–14: relative mildness, fog, and calm weather?
For the second week of December, the overall signal remains mild across Western Europe.
A disturbed westerly flow will mostly affect the British Isles and the northern parts of the continent, leaving Belgium under calmer, sometimes damp conditions, with no structured winter cold spells.
- Temperatures: slightly above average.
- Precipitation: near normal, locally a bit higher.
A possible early stratospheric warming over the Arctic could alter the large-scale circulation later in the month, keeping confidence levels low.
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Weather Outlook for 3 months
Update 11-11-25
Winter Outlook 2025–2026: mostly mild with variable conditions
🌡 Temperatures: around or slightly above normal (+0.5 °C), with a wide spread among models, meaning no dominant scenario can be confirmed.
🌧 Precipitation: near seasonal averages, with a possible surplus in eastern and mountainous areas.
🌬 General context: alternating between calm, high-pressure periods and unsettled spells, with no lasting cold outbreaks.
🔹 Summary December 2025 – February 2026:
Winter is expected to be slightly milder than average, with a mean thermal anomaly of +0.5 to +1.0 °C.
Rainfall totals should remain close to normal — slightly below average in December, above in January, balancing over the season.
A dominant westerly oceanic flow and frequent anticyclonic influence will limit major cold waves.
Under La Niña influence, circulation contrasts could intensify — bringing mild and wet conditions to western Europe, with brief but sharper cold spells in February.
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Update to BMCB Multimodel – since 1 October 2025
from ICON (replace location left above )
from ECMWF (replace location left above)