S
M
T
W
T
F
S
26
60°
45°
27
62°
47°
28
63°
48°
29
64°
47°
30
63°
48°
1
64°
50°
2
65°
49°
3
64°
50°
4
63°
50°
5
64°
49°
6
63°
50°
7
59°
49°
8
59°
50°
9
62°
50°
10
60°
49°
11
64°
51°
12
63°
52°
13
61°
52°
14
66°
53°
15
67°
52°
16
68°
45°
17
64°
44°
18
62°
43°
19
62°
46°
20
63°
46°
21
63°
49°
22
64°
51°
23
66°
53°
24
69°
51°
25
68°
51°
26
63°
52°
27
64°
50°
28
65°
47°
29
64°
46°
30
65°
50°
31
64°
50°
1
64°
53°
2
65°
54°
3
65°
51°
4
67°
56°
5
68°
56°
6
67°
57°
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 59° to 69°, with overnight lows between 43° and 57°. The average high for May is 64° with an average low of 50°. 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.
