S
M
T
W
T
F
S
26
63°
36°
27
73°
38°
28
68°
55°
29
62°
48°
30
53°
39°
1
57°
35°
2
49°
36°
3
57°
36°
4
74°
47°
5
74°
48°
6
49°
44°
7
57°
37°
8
56°
38°
9
63°
37°
10
59°
40°
11
55°
34°
12
60°
33°
13
69°
45°
14
51°
44°
15
64°
44°
16
80°
42°
17
83°
57°
18
91°
60°
19
87°
70°
20
77°
49°
21
61°
43°
22
66°
37°
23
57°
48°
24
61°
49°
25
70°
47°
26
83°
58°
27
76°
53°
28
67°
48°
29
61°
42°
30
58°
46°
31
66°
48°
1
67°
49°
2
67°
50°
3
70°
54°
4
74°
55°
5
74°
54°
6
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Belgium
Belgium's May 2026 forecast shows daily high temperatures ranging from 58° to 83°, with overnight lows between 42° and 58°. The average high for May is 70° with an average low of 51°. 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 Belgium. See also: June | July | August.
