Brussels, Belgium 14-Day Forecast
Belgium 🇧🇪
63°
Light rain shower right now
Today: high 66°, low 55°
Updated just now
Brussels weather for the next 14 days
Thursday, September 17
Overcast High 66° Low 52°Precipitation
53%
· 0.03 in
Max wind
17 mph
Humidity
72%
UV index
3 - Moderate
Sunrise / sunset
07:21 AM / 07:52 PM
Friday, September 18
Sunny High 68° Low 51°Precipitation
8%
· 0.0 in
Max wind
13 mph
Humidity
66%
UV index
4 - Moderate
Sunrise / sunset
07:22 AM / 07:50 PM
Saturday, September 19
Overcast High 69° Low 55°Precipitation
23%
· 0.0 in
Max wind
16 mph
Humidity
72%
UV index
2 - Low
Sunrise / sunset
07:24 AM / 07:48 PM
Sunday, September 20
Overcast High 69° Low 57°Precipitation
26%
· 0.0 in
Max wind
12 mph
Humidity
71%
UV index
5 - Moderate
Sunrise / sunset
07:25 AM / 07:46 PM
Monday, September 21
Sunny High 71° Low 54°Precipitation
9%
· 0.0 in
Max wind
12 mph
Humidity
70%
UV index
6 - High
Sunrise / sunset
07:27 AM / 07:43 PM
Tuesday, September 22
Overcast High 65° Low 57°Precipitation
22%
· 0.0 in
Max wind
11 mph
Humidity
82%
UV index
4 - Moderate
Sunrise / sunset
07:29 AM / 07:41 PM
Wednesday, September 23
Sunny High 73° Low 52°Precipitation
5%
· 0.0 in
Max wind
12 mph
Humidity
69%
UV index
6 - High
Sunrise / sunset
07:30 AM / 07:39 PM
Thursday, September 24
Sunny High 77° Low 55°Precipitation
3%
· 0.0 in
Max wind
8 mph
Humidity
44%
UV index
6 - High
Sunrise / sunset
07:32 AM / 07:37 PM
Friday, September 25
Overcast High 64° Low 52°Precipitation
20%
· 0.0 in
Max wind
9 mph
Humidity
76%
UV index
4 - Moderate
Sunrise / sunset
07:33 AM / 07:34 PM
Saturday, September 26
Overcast High 70° Low 49°Precipitation
15%
· 0.0 in
Max wind
8 mph
Humidity
71%
UV index
6 - High
Sunrise / sunset
07:35 AM / 07:32 PM
Sunday, September 27
Sunny High 78° Low 53°Precipitation
3%
· 0.0 in
Max wind
7 mph
Humidity
58%
UV index
7 - High
Sunrise / sunset
07:36 AM / 07:30 PM
Monday, September 28
Overcast High 68° Low 54°Precipitation
11%
· 0.0 in
Max wind
14 mph
Humidity
64%
UV index
5 - Moderate
Sunrise / sunset
07:38 AM / 07:28 PM
Tuesday, September 29
Light rain shower High 60° Low 53°Precipitation
87%
· 0.37 in
Max wind
21 mph
Humidity
84%
UV index
4 - Moderate
Sunrise / sunset
07:40 AM / 07:25 PM
Brussels 14-day outlook: the story
The warmest day of Brussels's 14-day outlook is Sunday, September 27 with a high near 78°F (25°C); the coolest night comes Saturday, September 26, dipping to 49°F (10°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 68°F (20°C), right in line with the typical September high of 68°F (20°C).
Precipitation is most likely on Thursday 17, Tuesday 29; the wettest day looks like Tuesday, September 29 with about 0.37 in (9.3 mm) expected. For the weekend, expect Saturday 69°F (20°C) and overcast / Sunday 69°F (21°C) and overcast.
For typical conditions month by month, see the Brussels climate & average temperatures guide.
Brussels forecast questions
Will it rain in Brussels this week?
The forecast currently shows meaningful precipitation chances on 2 of the next 14 days, peaking around Tuesday, September 29.
What will be the warmest day in Brussels over the next 14 days?
Sunday, September 27, with a forecast high near 78°F (25°C).
How accurate is a 14-day forecast for Brussels?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Brussels by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 43° | 35° | 14 | 3.0 in | 3.6 h/day | 87% |
| February | 47° | 36° | 12 | 2.6 in | 5.4 h/day | 82% |
| March | 52° | 38° | 14 | 2.8 in | 7.0 h/day | 78% |
| April | 57° | 41° | 11 | 1.9 in | 9.7 h/day | 72% |
| May | 65° | 48° | 12 | 2.5 in | 10.9 h/day | 72% |
| June | 72° | 55° | 10 | 2.8 in | 11.3 h/day | 71% |
| July | 73° | 58° | 11 | 2.7 in | 11.4 h/day | 71% |
| August | 74° | 59° | 12 | 2.3 in | 10.7 h/day | 72% |
| September | 68° | 54° | 11 | 2.5 in | 9.0 h/day | 76% |
| October | 60° | 49° | 13 | 2.8 in | 6.0 h/day | 82% |
| November | 51° | 41° | 14 | 2.7 in | 4.5 h/day | 86% |
| December | 46° | 38° | 14 | 3.0 in | 3.2 h/day | 88% |