S
M
T
W
T
F
S
28
84°
63°
29
88°
59°
30
90°
70°
1
99°
75°
2
101°
79°
3
102°
76°
4
96°
72°
5
91°
70°
6
88°
67°
7
86°
63°
8
85°
65°
9
86°
65°
10
88°
67°
11
86°
65°
12
81°
62°
13
87°
64°
14
79°
59°
15
79°
59°
16
80°
60°
17
81°
61°
18
81°
61°
19
82°
64°
20
82°
66°
21
81°
67°
22
86°
67°
23
82°
66°
24
85°
67°
25
87°
67°
26
88°
68°
27
88°
68°
28
87°
67°
29
87°
67°
30
86°
62°
31
80°
60°
1
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Morris Plains
Morris Plains's July 2026 forecast shows daily high temperatures ranging from 79° to 102°, with overnight lows between 59° and 79°. The average high for July is 86° with an average low of 66°. 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 Morris Plains. See also: August | September | October.