S
M
T
W
T
F
S
26
57°
43°
27
56°
41°
28
56°
41°
29
59°
43°
30
54°
44°
1
55°
46°
2
56°
43°
3
56°
40°
4
55°
40°
5
55°
41°
6
56°
40°
7
58°
43°
8
59°
48°
9
61°
48°
10
62°
44°
11
58°
42°
12
56°
42°
13
57°
43°
14
58°
45°
15
60°
44°
16
61°
45°
17
60°
45°
18
60°
50°
19
62°
46°
20
62°
47°
21
63°
50°
22
65°
50°
23
65°
53°
24
64°
54°
25
70°
54°
26
69°
53°
27
64°
55°
28
70°
55°
29
74°
50°
30
68°
50°
31
66°
52°
1
65°
51°
2
68°
50°
3
69°
56°
4
75°
56°
5
75°
57°
6
74°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bourne
Bourne's May 2026 forecast shows daily high temperatures ranging from 54° to 75°, with overnight lows between 40° and 57°. The average high for May is 62° with an average low of 47°. 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 Bourne. See also: June | July | August.
