S
M
T
W
T
F
S
26
65°
37°
27
73°
38°
28
74°
42°
29
74°
52°
30
53°
38°
1
54°
33°
2
50°
35°
3
56°
32°
4
61°
37°
5
73°
41°
6
51°
42°
7
55°
40°
8
56°
40°
9
65°
40°
10
62°
44°
11
55°
42°
12
57°
37°
13
54°
42°
14
55°
46°
15
68°
51°
16
72°
54°
17
68°
42°
18
73°
59°
19
80°
67°
20
72°
40°
21
60°
41°
22
65°
46°
23
68°
50°
24
70°
51°
25
69°
51°
26
70°
49°
27
70°
54°
28
72°
52°
29
71°
47°
30
74°
51°
31
66°
50°
1
69°
50°
2
69°
52°
3
68°
52°
4
67°
53°
5
68°
54°
6
76°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint-Charles-Borromée
Saint-Charles-Borromée's May 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 40° and 67°. 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 Saint-Charles-Borromée. See also: June | July | August.
