S
M
T
W
T
F
S
26
55°
23°
27
53°
34°
28
44°
27°
29
46°
30°
30
44°
26°
1
57°
20°
2
68°
32°
3
72°
36°
4
44°
28°
5
41°
29°
6
44°
27°
7
54°
29°
8
58°
34°
9
58°
34°
10
62°
38°
11
65°
40°
12
66°
42°
13
67°
43°
14
62°
39°
15
64°
42°
16
66°
40°
17
64°
45°
18
68°
47°
19
60°
46°
20
61°
37°
21
57°
35°
22
60°
37°
23
63°
37°
24
60°
38°
25
60°
38°
26
61°
39°
27
61°
39°
28
62°
40°
29
67°
48°
30
63°
46°
31
71°
50°
1
73°
52°
2
75°
51°
3
75°
53°
4
76°
54°
5
75°
53°
6
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Jean Baptiste
St. Jean Baptiste's May 2026 forecast shows daily high temperatures ranging from 41° to 76°, with overnight lows between 27° and 54°. The average high for May is 63° with an average low of 41°. 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 St. Jean Baptiste. See also: June | July | August.
