S
M
T
W
T
F
S
26
64°
50°
27
61°
45°
28
68°
43°
29
73°
50°
30
75°
45°
1
73°
55°
2
63°
43°
3
63°
37°
4
70°
50°
5
73°
54°
6
81°
64°
7
79°
50°
8
57°
46°
9
54°
43°
10
59°
41°
11
64°
36°
12
72°
46°
13
59°
43°
14
61°
45°
15
64°
41°
16
61°
46°
17
55°
39°
18
59°
37°
19
63°
41°
20
57°
43°
21
55°
41°
22
54°
43°
23
57°
41°
24
61°
46°
25
61°
43°
26
59°
45°
27
59°
52°
28
61°
52°
29
60°
48°
30
62°
45°
31
63°
46°
1
58°
46°
2
59°
47°
3
62°
49°
4
63°
49°
5
62°
48°
6
63°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Boulogne
Boulogne's May 2026 forecast shows daily high temperatures ranging from 58° to 63°, with overnight lows between 45° and 52°. The average high for May is 61° with an average low of 48°. 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 Boulogne. See also: June | July | August.
