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Weather in Diest
Flemish Brabant, 22 m · continuously updated
Schaffen (1 km) · 9 °C · KMI/IRM 14:00
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Temperature · last 4 and next 28 hours
Diest weather: the next 24 hours
Updated hourly.
Diest 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 Diest
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 Diest?
No active warning for Flemish Brabant.
Latest RMI observation near Diest
Measured at Schaffen, 1 km from Diest: situation as of 15 November 2026, 14:00. Schaffen 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 | 9.1 °C |
| Wind | 18 km/h S |
| Gusts | 32 km/h |
| Rain, last hour | — |
| Humidity | — |
| Pressure | 1004 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 Diest
The weather station nearest to Diest, Beauvechain located 127 m above sea level, is 29 km away; its records cover 1954–2013. In November, the mean temperature there is 6.8 °C over 1991–2020, 1.1 °C more than over 1961–1990 (5.7 °C), with about – mm of rain. The warmest month ever measured is July 2006 (22.3 °C), the coldest February 1956 (−7.2 °C). See the full series of Beauvechain
Today in Diest
- 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 (2.3 mm, up to 92 % chance). Have some shelter or a plan B ready. How it is calculated
- Best time to air the house: tomorrow, between 11:00 and 14:00. The outdoor dew point drops to 4.8 °C; once warmed to 20 °C, that air holds only 37 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Garden: 27.9 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 Diest
Today (Sunday 15 Nov) in Diest: drizzle, 1 to 10 °C, precipitation 3.1 mm (92 %), wind up to 19 km/h. Tomorrow: rain, 3 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | drizzle | 1 °C | 10 °C | 3.1 mm | 19 km/h |
| Tomorrow | rain | 3 °C | 9 °C | 7.3 mm | 27 km/h |
| Tue 17 Nov | rain | 3 °C | 13 °C | 20.5 mm | 35 km/h |
| Wed 18 Nov | showers | 8 °C | 12 °C | 4.6 mm | 24 km/h |
| Thu 19 Nov | showers | 8 °C | 10 °C | 16.0 mm | 23 km/h |
| Fri 20 Nov | showers | 1 °C | 8 °C | 18.9 mm | 13 km/h |
| Sat 21 Nov | partly cloudy | 0 °C | 10 °C | 0.0 mm | 9 km/h |
Tomorrow's weather in Diest
Tomorrow, Monday 16 Nov, in Diest: rain, from 3 to 9 °C, 7.3 mm of precipitation (probability 58 %), wind up to 27 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 9 °C | 0.0 mm | 58 % | 12 km/h |
| 03:00 |  light drizzle | 9 °C | 0.1 mm | 52 % | 14 km/h |
| 06:00 | heavy drizzle | 9 °C | 1.0 mm | 55 % | 27 km/h |
| 09:00 | light drizzle | 8 °C | 0.1 mm | 48 % | 24 km/h |
| 12:00 |  partly cloudy | 8 °C | 0.0 mm | 32 % | 22 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 18 % | 20 km/h |
| 18:00 | overcast | 4 °C | 0.0 mm | 10 % | 12 km/h |
| 21:00 | overcast | 3 °C | 0.0 mm | 19 % | 8 km/h |
Frequently asked questions
Will it rain tomorrow in Diest?
Yes: 7.3 mm expected, probability 58 %.
How warm will it be tomorrow in Diest?
Between 3 and 9 °C.
The weekend
Today, Sunday, in Diest: drizzle, 1 to 10 °C. Next weekend: Saturday partly cloudy, 0 to 10 °C, Sunday drizzle, 3 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | drizzle | 1 °C | 10 °C | 3.1 mm | 19 km/h |
| Sat 21 Nov | partly cloudy | 0 °C | 10 °C | 0.0 mm | 9 km/h |
| Sun 22 Nov | drizzle | 3 °C | 9 °C | 6.0 mm | 20 km/h |
Hour by hour
The next 48 hours in Diest, hour by hour: temperature from 3 to 13 °C, 27.9 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 14:00 | overcast | 8 °C | 0.0 mm | 3 % | 15 km/h |
| 15:00 | overcast | 9 °C | 0.0 mm | 11 % | 19 km/h |
| 16:00 | overcast | 10 °C | 0.0 mm | 24 % | 18 km/h |
| 17:00 | drizzle | 9 °C | 0.6 mm | 47 % | 15 km/h |
| 18:00 | drizzle | 9 °C | 0.9 mm | 74 % | 17 km/h |
| 19:00 | drizzle | 10 °C | 0.8 mm | 92 % | 18 km/h |
| 20:00 | light drizzle | 10 °C | 0.2 mm | 92 % | 14 km/h |
| 21:00 | light drizzle | 10 °C | 0.4 mm | 83 % | 15 km/h |
| 22:00 | overcast | 10 °C | 0.0 mm | 73 % | 14 km/h |
| 23:00 | overcast | 10 °C | 0.0 mm | 66 % | 12 km/h |
| 00:00 | overcast | 9 °C | 0.0 mm | 58 % | 12 km/h |
| 01:00 | light drizzle | 9 °C | 0.3 mm | 53 % | 10 km/h |
| 02:00 | light drizzle | 9 °C | 0.3 mm | 51 % | 12 km/h |
| 03:00 | light drizzle | 9 °C | 0.1 mm | 52 % | 14 km/h |
| 04:00 | light drizzle | 9 °C | 0.4 mm | 53 % | 19 km/h |
| 05:00 |  rain | 9 °C | 4.1 mm | 54 % | 13 km/h |
| 06:00 | heavy drizzle | 9 °C | 1.0 mm | 55 % | 27 km/h |
| 07:00 | drizzle | 8 °C | 0.7 mm | 55 % | 23 km/h |
| 08:00 | light drizzle | 8 °C | 0.3 mm | 52 % | 25 km/h |
| 09:00 | light drizzle | 8 °C | 0.1 mm | 48 % | 24 km/h |
| 10:00 | overcast | 8 °C | 0.0 mm | 43 % | 22 km/h |
| 11:00 | overcast | 8 °C | 0.0 mm | 38 % | 23 km/h |
| 12:00 | partly cloudy | 8 °C | 0.0 mm | 32 % | 22 km/h |
| 13:00 | overcast | 8 °C | 0.0 mm | 27 % | 20 km/h |
| 14:00 | overcast | 8 °C | 0.0 mm | 22 % | 21 km/h |
| 15:00 | overcast | 7 °C | 0.0 mm | 18 % | 20 km/h |
| 16:00 | overcast | 7 °C | 0.0 mm | 14 % | 19 km/h |
| 17:00 |  sunny | 6 °C | 0.0 mm | 11 % | 13 km/h |
| 18:00 | overcast | 4 °C | 0.0 mm | 10 % | 12 km/h |
| 19:00 | overcast | 4 °C | 0.0 mm | 10 % | 13 km/h |
| 20:00 | overcast | 3 °C | 0.0 mm | 13 % | 9 km/h |
| 21:00 | overcast | 3 °C | 0.0 mm | 19 % | 8 km/h |
| 22:00 | overcast | 3 °C | 0.0 mm | 25 % | 7 km/h |
| 23:00 | overcast | 3 °C | 0.0 mm | 31 % | 6 km/h |
| 00:00 | light drizzle | 3 °C | 0.1 mm | 37 % | 6 km/h |
| 01:00 | heavy drizzle | 4 °C | 1.0 mm | 43 % | 7 km/h |
| 02:00 | heavy drizzle | 4 °C | 1.0 mm | 48 % | 8 km/h |
| 03:00 | light rain | 4 °C | 1.3 mm | 53 % | 12 km/h |
| 04:00 | drizzle | 4 °C | 0.6 mm | 59 % | 14 km/h |
| 05:00 | rain | 4 °C | 2.8 mm | 66 % | 14 km/h |
| 06:00 | rain | 5 °C | 3.4 mm | 74 % | 18 km/h |
| 07:00 | rain | 5 °C | 4.0 mm | 80 % | 15 km/h |
| 08:00 | light rain | 5 °C | 1.8 mm | 84 % | 14 km/h |
| 09:00 | drizzle | 6 °C | 0.9 mm | 86 % | 10 km/h |
| 10:00 | light drizzle | 6 °C | 0.2 mm | 88 % | 5 km/h |
| 11:00 | light drizzle | 6 °C | 0.1 mm | 89 % | 3 km/h |
| 12:00 | light drizzle | 8 °C | 0.1 mm | 89 % | 9 km/h |
| 13:00 | light drizzle | 13 °C | 0.4 mm | 88 % | 22 km/h |
Location of Diest
Diest lies at 22 m, 19 m below the average of the 63 places we cover in the province of Flemish Brabant (41 m). That makes it the 16th lowest of the 63. The main town, Leuven, lies 29 km to the south-west. The nearest places we cover are Halen (6 km to the south-east), Scherpenheuvel-Zichem (7 km to the west), Tessenderlo-Ham (8 km to the north) and Lummen (8 km to the east). With about 23,998 inhabitants according to GeoNames, Diest is the 13th largest of the 62 places we cover in the province of Flemish Brabant. Of the places of interest on this site, the nearest are Circuit Zolder (circuit or festival, 17 km to the east) and Bokrijk (sight, 24 km to the east).
Today is close to the November normal (10.0 °C).
Climate of Diest: 1991–2020 normals
In Diest, July is typically the warmest month (up to 23.5 °C on average), while January is the coldest at 1.3 °C. December sees the most rain, with around 82 mm.
By season (average highs, 1991–2020 normals): winter 6.7 °C and 215 mm of rain, spring 14.9 °C and 165 mm, summer 22.7 °C and 231 mm, autumn 14.9 °C and 196 mm. The wettest season is summer (29 % of the annual total), the driest spring (20 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | 6.1 | 1.3 | 70 | 13 |
| February | 7.3 | 1.3 | 62 | 12 |
| March | 10.9 | 3.2 | 59 | 12 |
| April | 15.0 | 5.7 | 46 | 11 |
| May | 18.7 | 9.4 | 60 | 12 |
| June | 21.5 | 12.5 | 72 | 12 |
| July | 23.5 | 14.6 | 78 | 13 |
| August | 23.2 | 14.3 | 81 | 12 |
| September | 19.7 | 11.6 | 61 | 11 |
| October | 15.1 | 8.4 | 66 | 12 |
| November | 10.0 | 4.8 | 69 | 12 |
| December | 6.6 | 2.1 | 82 | 14 |
Compared with Leuven, the main town 29 km to the south-west, highs in the warmest month are 0.4 °C lower here, and the year brings 35 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).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Halen (6 km to the south-east): summers 0.3 °C cooler and 6 mm drier a year; Scherpenheuvel-Zichem (7 km to the west): equally warm summers and 17 mm wetter a year; Tessenderlo-Ham (8 km to the north): summers 0.3 °C cooler and 12 mm drier a year. Among the 63 places we cover in the province of Flemish Brabant whose normals come from the ERA5 reanalysis, Diest ranks 47th for summer warmth and 62nd 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 Diest?
The warmest month in Diest is typically July, averaging 23.5 °C (1991–2020 normal). The coldest is January, at 1.3 °C.
How many rainy days does Diest get per year?
Diest sees about 146 rainy days a year, adding up to roughly 806 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Diest?
Between July and January, the temperature gap in Diest runs to about 22.2 °C, based on the 1991–2020 normals.