S
M
T
W
T
F
S
26
44°
28°
27
49°
28°
28
55°
31°
29
49°
32°
30
48°
35°
1
47°
41°
2
52°
39°
3
51°
36°
4
58°
35°
5
75°
41°
6
73°
54°
7
59°
40°
8
53°
33°
9
57°
33°
10
62°
44°
11
59°
41°
12
43°
37°
13
N/A
14
64°
43°
15
47°
41°
16
60°
50°
17
68°
41°
18
52°
42°
19
61°
51°
20
64°
43°
21
54°
42°
22
54°
42°
23
55°
42°
24
55°
44°
25
58°
45°
26
56°
42°
27
58°
43°
28
59°
42°
29
59°
44°
30
60°
45°
31
58°
46°
1
59°
47°
2
63°
46°
3
60°
45°
4
60°
45°
5
61°
44°
6
60°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in St. Peters Harbour
St. Peters Harbour's May 2026 forecast shows daily high temperatures ranging from 47° to 68°, with overnight lows between 41° and 51°. The average high for May is 59° with an average low of 44°. 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. Peters Harbour. See also: June | July | August.
