S
M
T
W
T
F
S
26
50°
37°
27
45°
41°
28
52°
34°
29
52°
28°
30
50°
30°
1
54°
32°
2
66°
28°
3
68°
37°
4
59°
36°
5
45°
28°
6
43°
32°
7
57°
25°
8
68°
30°
9
57°
37°
10
55°
34°
11
66°
30°
12
64°
46°
13
72°
34°
14
79°
41°
15
81°
46°
16
72°
41°
17
66°
45°
18
59°
45°
19
50°
36°
20
59°
30°
21
64°
36°
22
52°
45°
23
61°
43°
24
81°
41°
25
88°
60°
26
86°
60°
27
83°
50°
28
82°
55°
29
83°
54°
30
81°
51°
31
78°
53°
1
74°
52°
2
78°
54°
3
77°
55°
4
77°
55°
5
75°
54°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Stephen
St. Stephen's May 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 50° and 60°. The average high for May is 80° with an average low of 55°. 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. Stephen. See also: June | July | August.
