S
M
T
W
T
F
S
26
53°
42°
27
51°
40°
28
59°
45°
29
55°
50°
30
54°
46°
1
50°
40°
2
46°
36°
3
50°
39°
4
52°
37°
5
56°
44°
6
52°
42°
7
50°
43°
8
52°
42°
9
54°
42°
10
57°
48°
11
51°
42°
12
51°
41°
13
52°
38°
14
50°
45°
15
53°
46°
16
64°
50°
17
61°
51°
18
52°
46°
19
50°
44°
20
66°
47°
21
54°
42°
22
63°
39°
23
61°
46°
24
60°
48°
25
59°
52°
26
71°
53°
27
62°
50°
28
61°
43°
29
58°
42°
30
66°
43°
31
67°
47°
1
69°
48°
2
68°
48°
3
71°
47°
4
70°
49°
5
71°
45°
6
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint-Jean
Saint-Jean's May 2026 forecast shows daily high temperatures ranging from 58° to 71°, with overnight lows between 42° and 53°. The average high for May is 66° with an average low of 47°. 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 Saint-Jean. See also: June | July | August.
