S
M
T
W
T
F
S
26
65°
37°
27
72°
31°
28
68°
35°
29
65°
34°
30
52°
45°
1
60°
38°
2
55°
39°
3
52°
33°
4
71°
36°
5
83°
44°
6
66°
48°
7
59°
36°
8
57°
30°
9
50°
30°
10
71°
44°
11
60°
38°
12
62°
32°
13
56°
39°
14
57°
50°
15
60°
46°
16
80°
45°
17
87°
54°
18
91°
54°
19
92°
63°
20
84°
63°
21
64°
44°
22
67°
44°
23
66°
42°
24
53°
48°
25
75°
51°
26
83°
51°
27
84°
54°
28
70°
48°
29
68°
45°
30
55°
35°
31
67°
45°
1
62°
40°
2
69°
43°
3
75°
47°
4
78°
52°
5
84°
58°
6
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Marlborough
Marlborough's May 2026 forecast shows daily high temperatures ranging from 55° to 84°, with overnight lows between 35° and 58°. The average high for May is 71° 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 Marlborough. See also: June | July | August.
