S
M
T
W
T
F
S
29
39°
12°
30
54°
31°
31
44°
30°
1
34°
28°
2
39°
25°
3
37°
30°
4
36°
30°
5
40°
31°
6
44°
30°
7
43°
25°
8
41°
24°
9
53°
24°
10
62°
35°
11
46°
36°
12
52°
29°
13
48°
33°
14
61°
46°
15
49°
44°
16
55°
41°
17
70°
45°
18
67°
37°
19
56°
37°
20
43°
30°
21
43°
22°
22
50°
24°
23
47°
35°
24
43°
31°
25
59°
37°
26
67°
34°
27
67°
37°
28
66°
32°
29
52°
40°
30
56°
46°
1
55°
38°
2
59°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Waterville
Waterville's April 2026 forecast shows daily high temperatures ranging from 52° to 59°, with overnight lows between 37° and 46°. The average high for April is 56° with an average low of 40°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Waterville. See also: May | June | July.