S
M
T
W
T
F
S
26
57°
41°
27
69°
38°
28
58°
42°
29
59°
47°
30
N/A
1
62°
45°
2
56°
39°
3
57°
40°
4
66°
51°
5
75°
54°
6
64°
47°
7
60°
40°
8
58°
42°
9
59°
47°
10
63°
46°
11
64°
44°
12
64°
48°
13
65°
49°
14
65°
50°
15
65°
51°
16
66°
52°
17
66°
52°
18
67°
55°
19
75°
56°
20
73°
56°
21
71°
57°
22
75°
56°
23
75°
56°
24
76°
55°
25
69°
50°
26
68°
55°
27
68°
57°
28
74°
59°
29
74°
58°
30
73°
57°
31
74°
57°
1
71°
51°
2
68°
52°
3
68°
51°
4
70°
51°
5
69°
52°
6
70°
52°
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 56° to 76°, with overnight lows between 39° and 59°. The average high for May is 68° with an average low of 51°. 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.