Weather in Boom
Antwerp, 9 m · continuously updated
Sint-Katelijne-Waver (11 km) · 9 °C · KMI/IRM 14:00
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- Humidity
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Temperature · last 4 and next 28 hours
Boom weather: the next 24 hours
Updated hourly.
Boom 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 Boom
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Antwerp.
Updated 15 Nov 13:48.
Is there an active weather warning for Boom?
No active warning for Antwerp.
Latest RMI observation near Boom
Measured at Sint-Katelijne-Waver, 11 km from Boom: situation as of 15 November 2026, 14:00. Sint-Katelijne-Waver 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 | 9.4 °C |
| Wind | 13 km/h S |
| Gusts | 27 km/h |
| Rain, last hour | 0.0 mm |
| Humidity | 81 % |
| 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 Boom
The weather station nearest to Boom, Deurne located 14 m above sea level, is 14 km away; its records cover 1954–2013. In November, the mean temperature there is 7.1 °C over 1991–2020, 0.9 °C more than over 1961–1990 (6.2 °C), with about – mm of rain. The warmest month ever measured is July 2006 (22.7 °C), the coldest February 1956 (−5.8 °C). See the full series of Deurne
Today in Boom
- 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 (1.9 mm, up to 90 % chance). Have some shelter or a plan B ready. How it is calculated
- Best time to air the house: tomorrow, between 12:00 and 14:00. The outdoor dew point drops to 4.4 °C; once warmed to 20 °C, that air holds only 36 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Garden: 23.3 mm of rain expected within 48 h, against a need of 1.1 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 Boom
Today (Sunday 15 Nov) in Boom: light rain, 1 to 10 °C, precipitation 3.0 mm (90 %), wind up to 21 km/h. Tomorrow: rain, 4 to 10 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light rain | 1 °C | 10 °C | 3.0 mm | 21 km/h |
| Tomorrow | rain | 4 °C | 10 °C | 6.3 mm | 27 km/h |
| Tue 17 Nov | rain | 4 °C | 14 °C | 16.6 mm | 42 km/h |
| Wed 18 Nov | drizzle | 8 °C | 11 °C | 3.5 mm | 22 km/h |
| Thu 19 Nov | showers | 8 °C | 11 °C | 15.4 mm | 19 km/h |
| Fri 20 Nov | showers | 3 °C | 8 °C | 17.8 mm | 14 km/h |
| Sat 21 Nov | overcast | 1 °C | 10 °C | 0.0 mm | 10 km/h |
Tomorrow's weather in Boom
Tomorrow, Monday 16 Nov, in Boom: rain, from 4 to 10 °C, 6.3 mm of precipitation (probability 65 %), wind up to 27 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 10 °C | 0.0 mm | 57 % | 15 km/h |
| 03:00 |  light drizzle | 9 °C | 0.3 mm | 61 % | 15 km/h |
| 06:00 | drizzle | 8 °C | 0.5 mm | 56 % | 22 km/h |
| 09:00 | overcast | 8 °C | 0.0 mm | 36 % | 24 km/h |
| 12:00 | overcast | 8 °C | 0.0 mm | 25 % | 24 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 11 % | 20 km/h |
| 18:00 | overcast | 5 °C | 0.0 mm | 12 % | 17 km/h |
| 21:00 | overcast | 4 °C | 0.0 mm | 23 % | 8 km/h |
Frequently asked questions
Will it rain tomorrow in Boom?
Yes: 6.3 mm expected, probability 65 %.
How warm will it be tomorrow in Boom?
Between 4 and 10 °C.
The weekend
Today, Sunday, in Boom: light rain, 1 to 10 °C. Next weekend: Saturday overcast, 1 to 10 °C, Sunday drizzle, 4 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today |  light rain | 1 °C | 10 °C | 3.0 mm | 21 km/h |
| Sat 21 Nov | overcast | 1 °C | 10 °C | 0.0 mm | 10 km/h |
| Sun 22 Nov | drizzle | 4 °C | 9 °C | 7.2 mm | 18 km/h |
Hour by hour
The next 48 hours in Boom, hour by hour: temperature from 4 to 14 °C, 23.3 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 14:00 | overcast | 9 °C | 0.0 mm | 12 % | 18 km/h |
| 15:00 | overcast | 9 °C | 0.0 mm | 27 % | 19 km/h |
| 16:00 | light drizzle | 9 °C | 0.3 mm | 43 % | 21 km/h |
| 17:00 | drizzle | 9 °C | 0.6 mm | 60 % | 15 km/h |
| 18:00 | light rain | 10 °C | 1.7 mm | 79 % | 15 km/h |
| 19:00 | light drizzle | 10 °C | 0.2 mm | 90 % | 21 km/h |
| 20:00 | overcast | 10 °C | 0.0 mm | 90 % | 18 km/h |
| 21:00 | overcast | 10 °C | 0.0 mm | 84 % | 18 km/h |
| 22:00 | overcast | 10 °C | 0.0 mm | 76 % | 18 km/h |
| 23:00 | overcast | 10 °C | 0.0 mm | 67 % | 16 km/h |
| 00:00 | overcast | 10 °C | 0.0 mm | 57 % | 15 km/h |
| 01:00 | light drizzle | 9 °C | 0.1 mm | 51 % | 17 km/h |
| 02:00 | light drizzle | 9 °C | 0.3 mm | 54 % | 17 km/h |
| 03:00 | light drizzle | 9 °C | 0.3 mm | 61 % | 15 km/h |
| 04:00 | rain | 9 °C | 3.2 mm | 65 % | 23 km/h |
| 05:00 | light rain | 9 °C | 1.4 mm | 62 % | 27 km/h |
| 06:00 | drizzle | 8 °C | 0.5 mm | 56 % | 22 km/h |
| 07:00 | light drizzle | 8 °C | 0.4 mm | 49 % | 24 km/h |
| 08:00 | light drizzle | 8 °C | 0.1 mm | 43 % | 24 km/h |
| 09:00 | overcast | 8 °C | 0.0 mm | 36 % | 24 km/h |
| 10:00 | overcast | 8 °C | 0.0 mm | 31 % | 23 km/h |
| 11:00 | overcast | 8 °C | 0.0 mm | 28 % | 24 km/h |
| 12:00 | overcast | 8 °C | 0.0 mm | 25 % | 24 km/h |
| 13:00 | overcast | 8 °C | 0.0 mm | 22 % | 22 km/h |
| 14:00 | overcast | 7 °C | 0.0 mm | 17 % | 21 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 11 % | 20 km/h |
| 16:00 |  sunny | 7 °C | 0.0 mm | 8 % | 19 km/h |
| 17:00 | overcast | 6 °C | 0.0 mm | 9 % | 18 km/h |
| 18:00 | overcast | 5 °C | 0.0 mm | 12 % | 17 km/h |
| 19:00 | overcast | 4 °C | 0.0 mm | 16 % | 13 km/h |
| 20:00 | overcast | 4 °C | 0.0 mm | 19 % | 10 km/h |
| 21:00 | overcast | 4 °C | 0.0 mm | 23 % | 8 km/h |
| 22:00 | overcast | 4 °C | 0.0 mm | 27 % | 7 km/h |
| 23:00 | overcast | 4 °C | 0.0 mm | 32 % | 7 km/h |
| 00:00 | overcast | 5 °C | 0.0 mm | 39 % | 8 km/h |
| 01:00 | drizzle | 4 °C | 0.9 mm | 45 % | 9 km/h |
| 02:00 | light rain | 4 °C | 1.4 mm | 52 % | 11 km/h |
| 03:00 | heavy drizzle | 4 °C | 1.2 mm | 58 % | 17 km/h |
| 04:00 | drizzle | 4 °C | 0.6 mm | 65 % | 17 km/h |
| 05:00 | rain | 4 °C | 2.7 mm | 72 % | 22 km/h |
| 06:00 | light rain | 4 °C | 1.6 mm | 79 % | 22 km/h |
| 07:00 | rain | 5 °C | 4.0 mm | 84 % | 21 km/h |
| 08:00 | light rain | 5 °C | 1.3 mm | 87 % | 18 km/h |
| 09:00 | light drizzle | 5 °C | 0.4 mm | 89 % | 13 km/h |
| 10:00 | light drizzle | 6 °C | 0.1 mm | 90 % | 9 km/h |
| 11:00 | overcast | 6 °C | 0.0 mm | 91 % | 6 km/h |
| 12:00 | overcast | 9 °C | 0.0 mm | 92 % | 11 km/h |
| 13:00 | overcast | 14 °C | 0.0 mm | 92 % | 28 km/h |
Location of Boom
Boom lies at 9 m, 7 m below the average of the 67 places we cover in the province of Antwerp (16 m). That makes it the 17th lowest of the 67. The main town, Antwerp, lies 14 km to the north. The nearest places we cover are Niel (3 km to the north-west), Willebroek (4 km to the south), Rumst (4 km to the east) and Schelle (4 km to the north-west). With about 18,244 inhabitants according to GeoNames, Boom is the 32nd largest of the 67 places we cover in the province of Antwerp. Of the places of interest on this site, the nearest are Boom, Tomorrowland (circuit or festival, 1 km to the south) and Atomium (sight, 22 km to the south).
Today is close to the November normal (10.4 °C).
Climate of Boom: 1991–2020 normals
In Boom, July is typically the warmest month (up to 23.7 °C on average), while February is the coldest at 1.8 °C. August sees the most rain, with around 89 mm.
By season (average highs, 1991–2020 normals): winter 7.0 °C and 220 mm of rain, spring 15.2 °C and 158 mm, summer 22.9 °C and 241 mm, autumn 15.3 °C and 203 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 | 6.6 | 1.9 | 73 | 13 |
| February | 7.6 | 1.8 | 63 | 12 |
| March | 11.4 | 3.9 | 54 | 12 |
| April | 15.4 | 6.4 | 45 | 11 |
| May | 18.9 | 9.9 | 58 | 12 |
| June | 21.7 | 12.9 | 72 | 12 |
| July | 23.7 | 15.0 | 81 | 13 |
| August | 23.4 | 14.6 | 89 | 13 |
| September | 20.0 | 11.8 | 64 | 11 |
| October | 15.4 | 8.5 | 69 | 12 |
| November | 10.4 | 5.0 | 70 | 13 |
| December | 6.9 | 2.4 | 84 | 14 |
Compared with Antwerp, the main town 14 km to the north, highs in the warmest month are 0.5 °C higher here, and the year brings the same amount of 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).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Niel (3 km to the north-west): almost identical normals; Edegem (9 km to the north-east): summers 0.4 °C cooler and 18 mm wetter a year; Bornem (9 km to the west): summers 0.3 °C cooler and 4 mm wetter a year. Among the 67 places we cover in the province of Antwerp whose normals come from the ERA5 reanalysis, Boom ranks 8th for summer warmth and 21st for annual precipitation. The warmest summers are in Mechelen and Bonheiden and the coolest in Essen; the wettest year is in Hove and the driest in Essen.
What is the warmest month in Boom?
The warmest month in Boom is typically July, averaging 23.7 °C (1991–2020 normal). The coldest is February, at 1.8 °C.
How many rainy days does Boom get per year?
Boom sees about 148 rainy days a year, adding up to roughly 822 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Boom?
Between July and February, the temperature gap in Boom runs to about 21.9 °C, based on the 1991–2020 normals.