S
M
T
W
T
F
S
26
59°
39°
27
71°
36°
28
55°
49°
29
54°
42°
30
45°
35°
1
42°
31°
2
42°
30°
3
55°
30°
4
71°
42°
5
68°
50°
6
50°
40°
7
50°
33°
8
52°
32°
9
59°
44°
10
56°
39°
11
50°
32°
12
61°
32°
13
61°
39°
14
44°
39°
15
64°
40°
16
N/A
17
79°
57°
18
89°
63°
19
85°
62°
20
67°
37°
21
59°
40°
22
64°
47°
23
66°
49°
24
70°
54°
25
70°
53°
26
69°
51°
27
71°
52°
28
72°
53°
29
70°
48°
30
75°
54°
31
74°
52°
1
70°
51°
2
70°
54°
3
71°
54°
4
70°
53°
5
68°
52°
6
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in St. Bonaventure
St. Bonaventure's May 2026 forecast shows daily high temperatures ranging from 59° to 89°, with overnight lows between 37° and 63°. The average high for May is 71° with an average low of 52°. 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. Bonaventure. See also: June | July | August.
