S
M
T
W
T
F
S
26
87°
69°
27
89°
70°
28
88°
69°
29
89°
70°
30
90°
69°
31
88°
69°
1
82°
67°
2
82°
64°
3
83°
66°
4
81°
68°
5
82°
68°
6
82°
67°
7
83°
66°
8
83°
66°
9
84°
68°
10
85°
68°
11
85°
67°
12
86°
67°
13
87°
66°
14
91°
66°
15
91°
67°
16
88°
67°
17
82°
66°
18
86°
67°
19
84°
62°
20
84°
59°
21
81°
58°
22
80°
58°
23
81°
59°
24
82°
58°
25
81°
59°
26
82°
64°
27
85°
62°
28
86°
61°
29
83°
61°
30
84°
59°
31
81°
58°
1
79°
60°
2
80°
63°
3
80°
58°
4
81°
56°
5
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Plainville
Plainville's August 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 56° and 70°. The average high for August is 84° with an average low of 64°. 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 Plainville. See also: September | October | November.
