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Hastière weather: 15-day forecast
Right now
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–Over the next 15 days in Hastière, temperatures range from 1 to 13 °C with 10 rainy days (116.0 mm in total).
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today |  light rain | 1 °C | 10 °C | 5.0 mm | 19 km/h |
| Tomorrow | light rain | 4 °C | 9 °C | 13.1 mm | 24 km/h |
| Tue 17 Nov | heavy rain | 5 °C | 13 °C | 51.4 mm | 26 km/h |
| Wed 18 Nov |  drizzle | 7 °C | 11 °C | 3.6 mm | 25 km/h |
| Thu 19 Nov | showers | 7 °C | 9 °C | 9.5 mm | 25 km/h |
| Fri 20 Nov | drizzle | 4 °C | 9 °C | 6.4 mm | 22 km/h |
| Sat 21 Nov |  overcast | 1 °C | 8 °C | 0.0 mm | 10 km/h |
| Sun 22 Nov | showers | 3 °C | 9 °C | 7.6 mm | 27 km/h |
| Mon 23 Nov | showers | 6 °C | 10 °C | 12.2 mm | 26 km/h |
| Tue 24 Nov | light drizzle | 5 °C | 8 °C | 0.6 mm | 16 km/h |
| Wed 25 Nov | overcast | 4 °C | 9 °C | 0.0 mm | 20 km/h |
| Thu 26 Nov | overcast | 6 °C | 10 °C | 0.0 mm | 18 km/h |
| Fri 27 Nov | drizzle | 6 °C | 11 °C | 5.2 mm | 21 km/h |
| Sat 28 Nov | light drizzle | 6 °C | 7 °C | 1.4 mm | 18 km/h |
| Sun 29 Nov | overcast | 4 °C | 6 °C | 0.0 mm | 15 km/h |
What the Hastière forecast shows
The period looks steady in Hastière: daytime highs average 9.7 °C in the first week and 8.9 °C afterwards, a difference of only 0.9 °C. Rain falls on 6 days in the first week and 4 days in the following 8 days.
Extremes of the period in Hastière. Warmest day: Tuesday 17 Nov, with a high of 13 °C. Coolest day: Sunday 29 Nov, when the high stays at 6 °C. Coldest night: Saturday 21 Nov, down to 1 °C. Wettest day: Tuesday 17 Nov, with 51.4 mm. Strongest wind: Sunday 22 Nov, gusting up to 27 km/h at most.
Over these 15 days the forecast highs average 9.3 °C, close to the 1991-2020 normal of 8.5 °C for the month (difference 0.8 °C).
Practical advice for the coming weeks
- Rain is likely on 10 days: keep a waterproof jacket or an umbrella at hand and plan indoor alternatives for outdoor events.
- Temperatures swing by up to 12 °C between the coldest night and the warmest day: dress in layers.
How reliable is a long-range forecast?
The first three to five days for Hastière are the most dependable. After about a week, a forecast gives a trend rather than an exact figure: the daily temperature can be off by several degrees and the timing of rain can shift by a day or more. Use the later days to plan broadly and check the page again as the date approaches, since it is updated several times a day.
Frequently asked questions
Will it rain in Hastière in the next 15 days?
Rain of at least 1 mm is forecast on 10 of the next 15 days, 116.0 mm in total.
Which day will be the warmest in Hastière?
Tuesday 17 Nov, with a forecast high of 13 °C.
Can a 15-day forecast be trusted?
The first days are reliable. The later days show the general trend (warmer, cooler, wetter or drier) more than exact values.
How far to trust the 15-day forecast for Hastière
A forecast loses detail the further ahead it looks, so the 15 days for Hastière are not equally dependable. Read them in bands, using the figures for this forecast.
- Days 1 to 3 (Sunday 15 Nov to Tuesday 17 Nov): the most dependable stretch. Daytime highs average 10.6 °C, and at least 1 mm of rain is forecast on 3 of the 3 days. Use these days for fixed plans, travel and outdoor jobs that cannot move.
- Days 4 to 7 (Wednesday 18 Nov to Saturday 21 Nov): the pattern is usually right, but timing can slip by a day. Highs average 9.1 °C with 3 wet days out of 4. Weather in Belgium is driven mostly by Atlantic disturbances arriving from the west, often one after another. A small change in the speed of a front moves rain and wind from one day to the next.
- Days 8 to 15 (Sunday 22 Nov to Sunday 29 Nov): treat as a trend. Highs average 8.9 °C and at least 1 mm of rain is forecast on 4 of the 8 days, but the models disagree more and more at this range. Read it as warmer or cooler, wetter or drier than usual, not as a day-by-day promise.
Hastière against the 1991-2020 normal for November
The 1991-2020 normal for November in Hastière is a daytime high of 8.5 °C and a night-time low of 3.6 °C. Over these 15 days the forecast gives an average high of 9.3 °C and an average low of 4.6 °C: highs are above the normal (a difference of 0.8 °C) and lows are above it (a difference of 1.0 °C).
A gap of one or two degrees is ordinary variation from year to year. A gap larger than that over a fortnight points to an unusually warm or cool spell, often tied to a persistent high-pressure area or to a run of northerly or southerly outbreaks. Highs and lows can move in different directions: cloudy nights are mild, clear nights are cold.
For rain, the November normal in Hastière is about 67 mm for the whole month. Pro rata, 15 days would share about 33 mm; the forecast adds up to 116.0 mm, around 347 % of that share. Rain falls in bursts, so a single front can account for most of a fortnight's total, and the pro rata figure is only a yardstick.
What to watch in Hastière
- Wettest day: Tuesday 17 Nov, with 51.4 mm. Rain reaches at least 1 mm on 10 of the 15 days, so check the later days again before planning outdoor events.
- Strongest gusts: Monday 23 Nov, up to 62 km/h. That is strong enough to disrupt ferries, flights and high-sided vehicles, so check the warnings as the day approaches.
- Coldest night: Saturday 21 Nov, down to 1 °C. Frost is possible: protect plants, and take care on roads and paths first thing in the morning.
- Warnings are separate from this forecast. They are issued by the RMI (Royal Meteorological Institute), which has the final word in severe weather: see the weather warnings page for active ones.
These readings are recomputed from the same Open-Meteo forecast as the table above, and from the climate normals described on the methodology page.
weer-meteo.be · Open-Meteo data