S
M
T
W
T
F
S
26
55°
39°
27
59°
40°
28
63°
45°
29
45°
38°
30
48°
35°
1
42°
31°
2
54°
27°
3
68°
36°
4
79°
42°
5
57°
37°
6
52°
30°
7
52°
32°
8
66°
33°
9
64°
36°
10
60°
31°
11
48°
31°
12
73°
31°
13
59°
35°
14
64°
30°
15
71°
46°
16
83°
57°
17
59°
45°
18
82°
53°
19
73°
52°
20
53°
40°
21
50°
38°
22
60°
42°
23
62°
49°
24
76°
51°
25
81°
50°
26
89°
60°
27
75°
55°
28
66°
43°
29
74°
52°
30
63°
46°
31
65°
49°
1
69°
48°
2
72°
49°
3
76°
54°
4
78°
57°
5
76°
54°
6
72°
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 63° to 78°, with overnight lows between 43° and 57°. The average high for May is 71° 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.
