S
M
T
W
T
F
S
26
56°
36°
27
52°
39°
28
55°
37°
29
55°
36°
30
56°
37°
1
55°
35°
2
53°
33°
3
53°
35°
4
52°
35°
5
53°
36°
6
54°
39°
7
55°
39°
8
55°
41°
9
56°
38°
10
55°
39°
11
56°
38°
12
57°
39°
13
58°
43°
14
62°
40°
15
57°
42°
16
56°
42°
17
61°
44°
18
59°
41°
19
60°
45°
20
63°
48°
21
68°
48°
22
64°
47°
23
61°
46°
24
62°
45°
25
65°
49°
26
69°
50°
27
70°
47°
28
72°
43°
29
67°
42°
30
68°
47°
31
66°
45°
1
64°
45°
2
65°
46°
3
70°
43°
4
66°
45°
5
65°
50°
6
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Casco
South Casco's May 2026 forecast shows daily high temperatures ranging from 52° to 72°, with overnight lows between 33° and 53°. The average high for May is 60° with an average low of 42°. 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 South Casco. See also: June | July | August.
