S
M
T
W
T
F
S
28
90°
69°
29
90°
76°
30
93°
76°
1
91°
74°
2
92°
74°
3
92°
71°
4
85°
71°
5
84°
66°
6
85°
61°
7
88°
64°
8
89°
71°
9
86°
67°
10
83°
65°
11
86°
65°
12
87°
68°
13
90°
67°
14
90°
66°
15
88°
67°
16
90°
67°
17
92°
66°
18
87°
65°
19
89°
69°
20
90°
68°
21
84°
66°
22
85°
64°
23
87°
67°
24
88°
65°
25
86°
67°
26
89°
68°
27
90°
69°
28
91°
70°
29
91°
70°
30
88°
69°
31
89°
70°
1
91°
70°
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 83° to 92°, with overnight lows between 61° and 71°. The average high for July is 88° with an average low of 67°. 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.
