S
M
T
W
T
F
S
26
59°
36°
27
71°
42°
28
63°
48°
29
49°
37°
30
47°
33°
1
42°
30°
2
44°
36°
3
57°
36°
4
71°
45°
5
52°
36°
6
50°
33°
7
48°
33°
8
51°
37°
9
52°
38°
10
53°
37°
11
54°
36°
12
55°
39°
13
60°
45°
14
56°
41°
15
56°
42°
16
59°
44°
17
61°
41°
18
65°
43°
19
60°
44°
20
63°
47°
21
64°
42°
22
59°
39°
23
56°
38°
24
58°
39°
25
57°
39°
26
59°
40°
27
59°
39°
28
60°
39°
29
60°
40°
30
61°
45°
31
63°
46°
1
62°
44°
2
63°
45°
3
66°
50°
4
66°
46°
5
67°
51°
6
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Brussels
Brussels's May 2026 forecast shows daily high temperatures ranging from 48° to 72°, with overnight lows between 33° and 52°. The average high for May is 59° with an average low of 42°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Brussels. See also: June | July | August.
