S
M
T
W
T
F
S
28
82°
61°
29
86°
60°
30
85°
63°
1
91°
66°
2
96°
72°
3
95°
74°
4
91°
70°
5
79°
63°
6
65°
59°
7
68°
58°
8
82°
61°
9
86°
68°
10
84°
66°
11
84°
60°
12
82°
58°
13
84°
63°
14
88°
67°
15
92°
65°
16
85°
60°
17
84°
62°
18
82°
64°
19
83°
61°
20
83°
60°
21
85°
61°
22
82°
60°
23
80°
57°
24
85°
60°
25
79°
58°
26
79°
61°
27
82°
63°
28
80°
63°
29
83°
62°
30
84°
63°
31
81°
63°
1
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Plymouth
Plymouth's July 2026 forecast shows daily high temperatures ranging from 79° to 92°, with overnight lows between 57° and 68°. The average high for July is 83° 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 July weather will actually feel in Plymouth. See also: August | September | October.
