S
M
T
W
T
F
S
26
64°
39°
27
68°
46°
28
57°
43°
29
64°
44°
30
69°
46°
1
72°
48°
2
66°
48°
3
62°
44°
4
60°
45°
5
62°
46°
6
60°
45°
7
60°
45°
8
61°
44°
9
60°
45°
10
57°
45°
11
62°
47°
12
59°
45°
13
58°
45°
14
58°
47°
15
61°
48°
16
63°
48°
17
62°
44°
18
64°
49°
19
66°
50°
20
67°
50°
21
67°
51°
22
68°
50°
23
67°
49°
24
66°
50°
25
66°
50°
26
62°
48°
27
61°
46°
28
61°
49°
29
62°
47°
30
65°
50°
31
67°
50°
1
67°
49°
2
66°
51°
3
68°
51°
4
65°
50°
5
63°
51°
6
64°
50°
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 57° to 72°, with overnight lows between 43° and 51°. 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 Bourne. See also: June | July | August.
