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Weather in Merchtem
Flemish Brabant, 24 m · continuously updated
Uccle (20 km) · 9 °C · KMI/IRM 14:00
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Temperature · last 4 and next 28 hours
Merchtem weather: the next 24 hours
Updated hourly.
Merchtem 15-day forecast
Two-week trend.
Sun and golden hours
Sunrise –, golden light until –
Sunset –, golden light from –
–
Air quality
European index, modelled by Copernicus (CAMS).
UV index
Daily maximum — protection advised from 3.
Freezing level
Snow settles about 300 m below it.
Around Merchtem
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Flemish Brabant.
Updated 15 Nov 13:48.
Is there an active weather warning for Merchtem?
No active warning for Flemish Brabant.
Latest RMI observation near Merchtem
Measured at Uccle, 20 km from Merchtem: situation as of 15 November 2026, 14:00. Uccle is the nearest weather station of the RMI/KMI (Royal Meteorological Institute of Belgium), one of the country's 28 synoptic stations. These are measured values, not a forecast; this page is refreshed three times a day, hence the time shown.
| Situation as of | 15 November 2026, 14:00 |
|---|---|
| Temperature | 9.3 °C |
| Wind | 18 km/h S |
| Gusts | 36 km/h |
| Rain, last hour | 0.0 mm |
| Humidity | 86 % |
| Pressure | 1003 hPa |
Observations from the 28 RMI stations
Source: RMI/KMI (Royal Meteorological Institute of Belgium), open observation data, Creative Commons Attribution 4.0 (CC BY 4.0) licence. The RMI is not liable for any damage resulting from the use of these data. Raw, unvalidated data shown as published, with wind converted from m/s to km/h. Data: opendata.meteo.be · CC BY 4.0
The observed climate near Merchtem
The weather station nearest to Merchtem, Uccle located 104 m above sea level, is 19 km away; its records cover 1795–2025. In November, the mean temperature there is 7.3 °C over 1991–2020, 1.0 °C more than over 1961–1990 (6.3 °C), with about – mm of rain. The warmest month ever measured is July 2006 (23.5 °C), the coldest February 1956 (−6.2 °C). See the full series of Uccle
Today in Merchtem
- No washing outside today: rain, or a risk of rain, covers the hours when it could dry. How it is calculated
- Terrace and barbecue between 18:00 and 23:00: rain likely (1.3 mm, up to 90 % chance). Have some shelter or a plan B ready. How it is calculated
- Best time to air the house: tomorrow, around 13:00. The outdoor dew point drops to 3.9 °C; once warmed to 20 °C, that air holds only 35 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Garden: 24.6 mm of rain expected within 48 h, against a need of 1 mm. No need to water, the rain will do it. How it is calculated
Calculated from Open-Meteo forecasts of 2026-11-15 14:48 (local time): model values, not measurements. All of today's advice
7-day forecast for Merchtem
Today (Sunday 15 Nov) in Merchtem: light rain, 0 to 10 °C, precipitation 2.9 mm (90 %), wind up to 25 km/h. Tomorrow: rain, 3 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light rain | 0 °C | 10 °C | 2.9 mm | 25 km/h |
| Tomorrow | rain | 3 °C | 9 °C | 5.4 mm | 30 km/h |
| Tue 17 Nov | rain | 4 °C | 13 °C | 18.3 mm | 41 km/h |
| Wed 18 Nov | light drizzle | 8 °C | 12 °C | 1.9 mm | 24 km/h |
| Thu 19 Nov | showers | 8 °C | 10 °C | 13.2 mm | 22 km/h |
| Fri 20 Nov | showers | 2 °C | 8 °C | 14.8 mm | 15 km/h |
| Sat 21 Nov | overcast | 1 °C | 10 °C | 0.0 mm | 11 km/h |
Tomorrow's weather in Merchtem
Tomorrow, Monday 16 Nov, in Merchtem: rain, from 3 to 9 °C, 5.4 mm of precipitation (probability 65 %), wind up to 30 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  light drizzle | 9 °C | 0.1 mm | 57 % | 17 km/h |
| 03:00 | light drizzle | 9 °C | 0.1 mm | 61 % | 20 km/h |
| 06:00 | light drizzle | 8 °C | 0.3 mm | 56 % | 22 km/h |
| 09:00 |  overcast | 7 °C | 0.0 mm | 36 % | 25 km/h |
| 12:00 | overcast | 7 °C | 0.0 mm | 25 % | 24 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 11 % | 19 km/h |
| 18:00 | overcast | 4 °C | 0.0 mm | 12 % | 15 km/h |
| 21:00 | overcast | 3 °C | 0.0 mm | 23 % | 9 km/h |
Frequently asked questions
Will it rain tomorrow in Merchtem?
Yes: 5.4 mm expected, probability 65 %.
How warm will it be tomorrow in Merchtem?
Between 3 and 9 °C.
The weekend
Today, Sunday, in Merchtem: light rain, 0 to 10 °C. Next weekend: Saturday overcast, 1 to 10 °C, Sunday heavy drizzle, 4 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today |  light rain | 0 °C | 10 °C | 2.9 mm | 25 km/h |
| Sat 21 Nov | overcast | 1 °C | 10 °C | 0.0 mm | 11 km/h |
| Sun 22 Nov | heavy drizzle | 4 °C | 9 °C | 8.0 mm | 22 km/h |
Hour by hour
The next 48 hours in Merchtem, hour by hour: temperature from 3 to 13 °C, 24.6 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 14:00 | overcast | 8 °C | 0.0 mm | 12 % | 23 km/h |
| 15:00 | overcast | 9 °C | 0.0 mm | 27 % | 25 km/h |
| 16:00 | drizzle | 9 °C | 0.6 mm | 43 % | 22 km/h |
| 17:00 | drizzle | 10 °C | 0.8 mm | 60 % | 19 km/h |
| 18:00 | light rain | 10 °C | 1.3 mm | 79 % | 25 km/h |
| 19:00 | overcast | 10 °C | 0.0 mm | 90 % | 23 km/h |
| 20:00 | overcast | 10 °C | 0.0 mm | 90 % | 20 km/h |
| 21:00 | overcast | 10 °C | 0.0 mm | 84 % | 20 km/h |
| 22:00 | overcast | 10 °C | 0.0 mm | 76 % | 19 km/h |
| 23:00 | overcast | 10 °C | 0.0 mm | 67 % | 16 km/h |
| 00:00 | light drizzle | 9 °C | 0.1 mm | 57 % | 17 km/h |
| 01:00 | light drizzle | 9 °C | 0.1 mm | 51 % | 18 km/h |
| 02:00 | light drizzle | 9 °C | 0.1 mm | 54 % | 19 km/h |
| 03:00 | light drizzle | 9 °C | 0.1 mm | 61 % | 20 km/h |
| 04:00 | rain | 9 °C | 3.6 mm | 65 % | 20 km/h |
| 05:00 | drizzle | 9 °C | 0.8 mm | 62 % | 30 km/h |
| 06:00 | light drizzle | 8 °C | 0.3 mm | 56 % | 22 km/h |
| 07:00 | light drizzle | 8 °C | 0.1 mm | 49 % | 24 km/h |
| 08:00 | overcast | 8 °C | 0.0 mm | 43 % | 25 km/h |
| 09:00 | overcast | 7 °C | 0.0 mm | 36 % | 25 km/h |
| 10:00 | overcast | 7 °C | 0.0 mm | 31 % | 24 km/h |
| 11:00 | light drizzle | 7 °C | 0.1 mm | 28 % | 24 km/h |
| 12:00 | overcast | 7 °C | 0.0 mm | 25 % | 24 km/h |
| 13:00 | overcast | 7 °C | 0.0 mm | 22 % | 23 km/h |
| 14:00 |  sunny | 7 °C | 0.0 mm | 17 % | 23 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 11 % | 19 km/h |
| 16:00 | light drizzle | 6 °C | 0.1 mm | 8 % | 18 km/h |
| 17:00 | overcast | 5 °C | 0.0 mm | 9 % | 17 km/h |
| 18:00 | overcast | 4 °C | 0.0 mm | 12 % | 15 km/h |
| 19:00 | overcast | 3 °C | 0.0 mm | 16 % | 13 km/h |
| 20:00 | overcast | 3 °C | 0.0 mm | 19 % | 9 km/h |
| 21:00 | overcast | 3 °C | 0.0 mm | 23 % | 9 km/h |
| 22:00 | overcast | 3 °C | 0.0 mm | 27 % | 9 km/h |
| 23:00 | overcast | 4 °C | 0.0 mm | 32 % | 7 km/h |
| 00:00 | light drizzle | 4 °C | 0.4 mm | 39 % | 8 km/h |
| 01:00 | light rain | 4 °C | 1.3 mm | 45 % | 9 km/h |
| 02:00 | light rain | 4 °C | 2.1 mm | 52 % | 11 km/h |
| 03:00 | light rain | 5 °C | 1.5 mm | 58 % | 19 km/h |
| 04:00 | light rain | 4 °C | 2.1 mm | 65 % | 20 km/h |
| 05:00 | light rain | 5 °C | 2.4 mm | 72 % | 24 km/h |
| 06:00 | light rain | 5 °C | 2.2 mm | 79 % | 21 km/h |
| 07:00 | rain | 5 °C | 2.9 mm | 84 % | 19 km/h |
| 08:00 | drizzle | 6 °C | 0.6 mm | 87 % | 17 km/h |
| 09:00 | light drizzle | 6 °C | 0.2 mm | 89 % | 10 km/h |
| 10:00 | light drizzle | 6 °C | 0.1 mm | 90 % | 4 km/h |
| 11:00 | overcast | 9 °C | 0.0 mm | 91 % | 14 km/h |
| 12:00 | light drizzle | 12 °C | 0.4 mm | 92 % | 22 km/h |
| 13:00 | light drizzle | 13 °C | 0.3 mm | 92 % | 26 km/h |
Location of Merchtem
Merchtem lies at 24 m, 17 m below the average of the 63 places we cover in the province of Flemish Brabant (41 m). That makes it the 19th lowest of the 63. The main town, Leuven, lies 34 km to the east. The nearest places we cover are Opwijk (3 km to the west), Asse (5 km to the south), Buggenhout (7 km to the north) and Meise (7 km to the east). With about 16,583 inhabitants according to GeoNames, Merchtem is the 23rd largest of the 62 places we cover in the province of Flemish Brabant. Of the places of interest on this site, the nearest are Atomium (sight, 10 km to the south-east) and Boom, Tomorrowland (circuit or festival, 18 km to the north-east).
Today is close to the November normal (10.3 °C).
Climate of Merchtem: 1991–2020 normals
In Merchtem, July is typically the warmest month (up to 23.6 °C on average), while February is the coldest at 1.8 °C. August sees the most rain, with around 92 mm.
By season (average highs, 1991–2020 normals): winter 7.0 °C and 224 mm of rain, spring 15.1 °C and 160 mm, summer 22.8 °C and 242 mm, autumn 15.2 °C and 210 mm. The wettest season is summer (29 % of the annual total), the driest spring (19 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | 6.5 | 1.9 | 75 | 13 |
| February | 7.6 | 1.8 | 63 | 12 |
| March | 11.3 | 4.0 | 54 | 12 |
| April | 15.3 | 6.5 | 46 | 12 |
| May | 18.8 | 9.9 | 59 | 12 |
| June | 21.5 | 12.8 | 70 | 12 |
| July | 23.6 | 14.9 | 80 | 13 |
| August | 23.3 | 14.5 | 92 | 13 |
| September | 19.9 | 11.7 | 67 | 12 |
| October | 15.3 | 8.5 | 71 | 12 |
| November | 10.3 | 4.9 | 72 | 13 |
| December | 6.9 | 2.4 | 86 | 14 |
Compared with Leuven, the main town 34 km to the east, highs in the warmest month are 0.3 °C lower here, and the year brings 6 mm less precipitation. In no month does the average low fall below 0 °C; in 3 months the average high exceeds 20 °C (June, July and August).
The nearest neighbouring places, Asse, Meise and Londerzeel, have almost identical normals. Among the 63 places we cover in the province of Flemish Brabant whose normals come from the ERA5 reanalysis, Merchtem ranks 40th for summer warmth and 39th for annual precipitation. The warmest summers are in Rotselaar, Haacht and Boortmeerbeek and the coolest in Landen; the wettest year is in Hoegaarden and the driest in Geetbets.
What is the warmest month in Merchtem?
The warmest month in Merchtem is typically July, averaging 23.6 °C (1991–2020 normal). The coldest is February, at 1.8 °C.
How many rainy days does Merchtem get per year?
Merchtem sees about 148 rainy days a year, adding up to roughly 835 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Merchtem?
Between July and February, the temperature gap in Merchtem runs to about 21.8 °C, based on the 1991–2020 normals.