S
M
T
W
T
F
S
26
57°
37°
27
66°
34°
28
55°
46°
29
52°
45°
30
48°
37°
1
48°
32°
2
45°
32°
3
54°
32°
4
72°
41°
5
72°
54°
6
55°
43°
7
55°
34°
8
55°
32°
9
55°
45°
10
63°
41°
11
55°
32°
12
63°
28°
13
63°
45°
14
N/A
15
70°
44°
16
81°
60°
17
81°
57°
18
90°
62°
19
90°
62°
20
81°
54°
21
68°
44°
22
67°
49°
23
71°
49°
24
76°
53°
25
74°
55°
26
78°
59°
27
82°
51°
28
73°
55°
29
70°
56°
30
70°
56°
31
73°
52°
1
70°
50°
2
70°
49°
3
69°
49°
4
71°
50°
5
74°
58°
6
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Waterville
Waterville's May 2026 forecast shows daily high temperatures ranging from 67° to 90°, with overnight lows between 44° and 62°. The average high for May is 75° with an average low of 54°. 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 Waterville. See also: June | July | August.
