S
M
T
W
T
F
S
26
81°
49°
27
85°
49°
28
82°
54°
29
71°
63°
30
76°
59°
31
82°
56°
1
86°
57°
2
82°
68°
3
77°
56°
4
84°
55°
5
84°
63°
6
86°
65°
7
86°
61°
8
84°
60°
9
83°
58°
10
82°
57°
11
78°
55°
12
77°
53°
13
75°
53°
14
77°
55°
15
78°
51°
16
73°
49°
17
75°
54°
18
74°
51°
19
74°
51°
20
75°
49°
21
73°
47°
22
74°
53°
23
80°
56°
24
78°
56°
25
73°
55°
26
78°
52°
27
74°
51°
28
72°
55°
29
77°
53°
30
78°
54°
31
79°
52°
1
75°
48°
2
70°
49°
3
70°
48°
4
71°
45°
5
71°
46°
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 70° to 86°, with overnight lows between 45° and 68°. The average high for August is 77° with an average low of 54°. 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.
