S
M
T
W
T
F
S
26
36°
20°
27
43°
22°
28
55°
20°
29
56°
23°
30
N/A
1
74°
41°
2
67°
35°
3
76°
47°
4
59°
34°
5
55°
30°
6
64°
38°
7
76°
41°
8
68°
36°
9
67°
39°
10
65°
41°
11
66°
40°
12
65°
41°
13
68°
40°
14
67°
39°
15
59°
38°
16
60°
38°
17
61°
36°
18
65°
42°
19
62°
44°
20
60°
42°
21
60°
41°
22
63°
44°
23
62°
43°
24
63°
38°
25
63°
42°
26
66°
45°
27
69°
48°
28
70°
50°
29
66°
42°
30
63°
45°
31
64°
50°
1
66°
51°
2
66°
52°
3
68°
51°
4
68°
52°
5
65°
52°
6
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saco
Saco's May 2026 forecast shows daily high temperatures ranging from 55° to 76°, with overnight lows between 30° and 53°. The average high for May is 65° 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 Saco. See also: June | July | August.
