S
M
T
W
T
F
S
26
70°
29°
27
63°
31°
28
63°
27°
29
49°
36°
30
54°
41°
1
58°
31°
2
56°
41°
3
48°
36°
4
62°
37°
5
66°
45°
6
60°
46°
7
58°
50°
8
58°
42°
9
60°
40°
10
61°
45°
11
58°
47°
12
60°
46°
13
61°
44°
14
60°
44°
15
62°
45°
16
67°
48°
17
66°
47°
18
63°
49°
19
68°
49°
20
67°
48°
21
64°
50°
22
68°
51°
23
67°
50°
24
67°
50°
25
63°
49°
26
63°
50°
27
64°
51°
28
66°
51°
29
64°
49°
30
64°
50°
31
67°
52°
1
65°
51°
2
68°
49°
3
67°
53°
4
70°
53°
5
66°
52°
6
69°
55°
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 48° to 70°, with overnight lows between 36° and 55°. The average high for May is 63° 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 St. Stephen. See also: June | July | August.
