S
M
T
W
T
F
S
26
82°
63°
27
83°
63°
28
77°
60°
29
77°
63°
30
78°
65°
31
81°
66°
1
78°
66°
2
78°
65°
3
82°
64°
4
77°
59°
5
78°
65°
6
81°
66°
7
80°
63°
8
78°
65°
9
77°
59°
10
79°
61°
11
83°
65°
12
84°
66°
13
84°
63°
14
76°
59°
15
79°
61°
16
81°
65°
17
75°
61°
18
82°
62°
19
82°
64°
20
83°
58°
21
74°
55°
22
74°
57°
23
81°
65°
24
82°
64°
25
83°
59°
26
81°
54°
27
74°
53°
28
72°
52°
29
73°
54°
30
76°
57°
31
79°
57°
1
78°
52°
2
73°
52°
3
70°
51°
4
69°
52°
5
69°
51°
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 69° to 84°, with overnight lows between 51° and 66°. The average high for August is 78° with an average low of 60°. 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.
