S
M
T
W
T
F
S
26
67°
49°
27
78°
47°
28
75°
59°
29
65°
50°
30
59°
41°
1
57°
39°
2
56°
35°
3
63°
32°
4
77°
53°
5
71°
58°
6
61°
44°
7
61°
39°
8
71°
39°
9
75°
53°
10
72°
53°
11
71°
46°
12
75°
43°
13
71°
49°
14
64°
42°
15
68°
39°
16
75°
60°
17
85°
63°
18
88°
68°
19
87°
66°
20
71°
55°
21
68°
50°
22
69°
57°
23
74°
63°
24
72°
62°
25
78°
64°
26
73°
67°
27
77°
62°
28
82°
54°
29
77°
56°
30
77°
51°
31
76°
52°
1
76°
51°
2
75°
54°
3
76°
56°
4
77°
55°
5
80°
61°
6
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Falmouth
Falmouth's May 2026 forecast shows daily high temperatures ranging from 73° to 82°, with overnight lows between 51° and 67°. The average high for May is 77° with an average low of 57°. 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 Falmouth. See also: June | July | August.
