S
M
T
W
T
F
S
26
63°
37°
27
66°
41°
28
68°
45°
29
68°
46°
30
70°
46°
1
77°
45°
2
75°
55°
3
63°
55°
4
64°
54°
5
55°
50°
6
57°
46°
7
59°
48°
8
64°
50°
9
70°
45°
10
66°
48°
11
52°
41°
12
55°
39°
13
55°
45°
14
52°
43°
15
52°
39°
16
55°
39°
17
59°
48°
18
59°
46°
19
61°
46°
20
64°
54°
21
70°
52°
22
79°
54°
23
84°
59°
24
82°
61°
25
84°
57°
26
88°
63°
27
82°
58°
28
84°
64°
29
88°
66°
30
84°
64°
31
73°
57°
1
74°
60°
2
73°
56°
3
71°
59°
4
70°
56°
5
68°
54°
6
68°
56°
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 68° to 88°, with overnight lows between 54° and 66°. The average high for May is 77° with an average low of 59°. 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.
