S
M
T
W
T
F
S
26
83°
61°
27
79°
62°
28
81°
61°
29
78°
59°
30
78°
61°
31
85°
65°
1
79°
62°
2
80°
64°
3
82°
65°
4
86°
65°
5
82°
62°
6
83°
64°
7
79°
59°
8
78°
64°
9
78°
64°
10
79°
60°
11
78°
58°
12
78°
63°
13
84°
66°
14
84°
66°
15
82°
65°
16
81°
65°
17
82°
66°
18
83°
65°
19
81°
64°
20
77°
63°
21
77°
63°
22
78°
64°
23
78°
64°
24
77°
63°
25
77°
64°
26
79°
65°
27
77°
65°
28
83°
62°
29
79°
59°
30
76°
58°
31
80°
59°
1
82°
60°
2
83°
62°
3
84°
62°
4
81°
58°
5
81°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Plymouth
Plymouth's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 53° and 66°. The average high for August is 80° with an average low of 62°. 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 Plymouth. See also: September | October | November.
