S
M
T
W
T
F
S
26
65°
29°
27
71°
31°
28
62°
32°
29
55°
42°
30
47°
42°
1
60°
34°
2
45°
32°
3
53°
31°
4
68°
27°
5
79°
49°
6
62°
51°
7
61°
44°
8
55°
32°
9
58°
27°
10
65°
44°
11
60°
40°
12
57°
29°
13
50°
31°
14
63°
45°
15
60°
49°
16
77°
46°
17
80°
44°
18
66°
47°
19
91°
69°
20
85°
46°
21
64°
36°
22
66°
42°
23
63°
47°
24
61°
44°
25
63°
47°
26
65°
50°
27
68°
46°
28
73°
49°
29
74°
54°
30
75°
51°
31
64°
50°
1
67°
50°
2
64°
49°
3
64°
49°
4
63°
52°
5
64°
53°
6
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mechanic Falls
Mechanic Falls's May 2026 forecast shows daily high temperatures ranging from 61° to 91°, with overnight lows between 36° and 69°. 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 Mechanic Falls. See also: June | July | August.