S
M
T
W
T
F
S
26
52°
41°
27
53°
42°
28
56°
38°
29
52°
32°
30
50°
28°
1
54°
32°
2
64°
27°
3
70°
39°
4
61°
41°
5
50°
30°
6
45°
34°
7
59°
33°
8
68°
45°
9
59°
34°
10
57°
31°
11
64°
45°
12
63°
42°
13
67°
47°
14
72°
48°
15
70°
50°
16
73°
54°
17
76°
51°
18
70°
49°
19
69°
53°
20
70°
47°
21
65°
44°
22
64°
44°
23
65°
47°
24
65°
51°
25
67°
53°
26
70°
50°
27
73°
53°
28
75°
55°
29
76°
56°
30
76°
56°
31
77°
55°
1
72°
53°
2
76°
58°
3
78°
58°
4
79°
54°
5
68°
52°
6
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cambridge
Cambridge's May 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 31° and 58°. The average high for May is 69° with an average low of 49°. 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 Cambridge. See also: June | July | August.