S
M
T
W
T
F
S
26
70°
29°
27
63°
31°
28
63°
27°
29
49°
36°
30
54°
41°
1
58°
31°
2
59°
28°
3
46°
41°
4
61°
35°
5
75°
36°
6
61°
49°
7
64°
35°
8
54°
31°
9
64°
29°
10
55°
44°
11
65°
46°
12
57°
36°
13
64°
29°
14
68°
42°
15
65°
38°
16
78°
35°
17
77°
42°
18
67°
42°
19
77°
45°
20
88°
49°
21
63°
38°
22
68°
31°
23
65°
38°
24
60°
46°
25
54°
48°
26
70°
51°
27
66°
46°
28
57°
43°
29
57°
44°
30
58°
40°
31
59°
44°
1
64°
46°
2
61°
44°
3
61°
47°
4
66°
49°
5
65°
47°
6
65°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Machias
Machias's May 2026 forecast shows daily high temperatures ranging from 54° to 70°, with overnight lows between 38° and 51°. The average high for May is 62° with an average low of 45°. 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 Machias. See also: June | July | August.
