S
M
T
W
T
F
S
26
62°
41°
27
72°
37°
28
71°
40°
29
68°
45°
30
58°
48°
1
64°
41°
2
56°
47°
3
56°
40°
4
71°
40°
5
78°
52°
6
68°
54°
7
62°
43°
8
61°
41°
9
58°
44°
10
70°
53°
11
62°
52°
12
65°
42°
13
67°
47°
14
61°
54°
15
65°
49°
16
78°
48°
17
90°
53°
18
88°
58°
19
91°
66°
20
91°
67°
21
66°
55°
22
N/A
23
60°
48°
24
58°
55°
25
74°
55°
26
80°
61°
27
82°
57°
28
77°
51°
29
71°
51°
30
72°
54°
31
71°
54°
1
77°
55°
2
76°
57°
3
75°
58°
4
76°
54°
5
79°
59°
6
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Marlborough
Marlborough's May 2026 forecast shows daily high temperatures ranging from 58° to 82°, with overnight lows between 48° and 61°. The average high for May is 74° with an average low of 55°. 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.
