S
M
T
W
T
F
S
26
88°
72°
27
88°
72°
28
82°
66°
29
86°
64°
30
79°
68°
31
70°
61°
1
79°
61°
2
81°
55°
3
81°
63°
4
72°
57°
5
73°
54°
6
77°
50°
7
73°
55°
8
75°
50°
9
81°
63°
10
81°
63°
11
82°
68°
12
82°
66°
13
77°
66°
14
75°
64°
15
79°
68°
16
75°
59°
17
77°
54°
18
79°
59°
19
75°
54°
20
75°
52°
21
75°
61°
22
73°
52°
23
75°
45°
24
77°
55°
25
81°
57°
26
76°
54°
27
80°
51°
28
81°
63°
29
82°
66°
30
83°
61°
31
82°
58°
1
78°
57°
2
79°
56°
3
77°
57°
4
77°
58°
5
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Waterville
Waterville's August 2026 forecast shows daily high temperatures ranging from 76° to 83°, with overnight lows between 51° and 66°. The average high for August is 79° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Waterville. See also: September | October | November.
