S
M
T
W
T
F
S
26
53°
37°
27
58°
37°
28
58°
40°
29
54°
37°
30
55°
39°
1
60°
45°
2
54°
33°
3
53°
34°
4
55°
36°
5
58°
36°
6
56°
37°
7
57°
39°
8
58°
37°
9
58°
38°
10
60°
44°
11
58°
38°
12
58°
37°
13
59°
44°
14
63°
46°
15
60°
45°
16
63°
44°
17
64°
45°
18
66°
48°
19
69°
47°
20
68°
41°
21
60°
41°
22
61°
45°
23
65°
46°
24
66°
49°
25
70°
49°
26
70°
46°
27
62°
46°
28
63°
48°
29
63°
46°
30
64°
44°
31
64°
49°
1
72°
46°
2
71°
47°
3
66°
49°
4
71°
50°
5
70°
49°
6
71°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wiscasset
Wiscasset's May 2026 forecast shows daily high temperatures ranging from 53° to 72°, with overnight lows between 33° and 50°. The average high for May is 62° with an average low of 43°. 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 Wiscasset. See also: June | July | August.
