S
M
T
W
T
F
S
26
82°
62°
27
82°
63°
28
82°
61°
29
84°
66°
30
83°
65°
31
82°
59°
1
82°
66°
2
84°
67°
3
85°
61°
4
84°
60°
5
82°
59°
6
83°
59°
7
84°
61°
8
81°
60°
9
81°
65°
10
85°
64°
11
81°
61°
12
84°
65°
13
86°
66°
14
81°
66°
15
83°
65°
16
87°
59°
17
86°
59°
18
80°
60°
19
79°
62°
20
79°
59°
21
80°
58°
22
79°
63°
23
80°
64°
24
84°
65°
25
87°
64°
26
86°
56°
27
83°
55°
28
77°
55°
29
78°
57°
30
78°
59°
31
81°
62°
1
83°
63°
2
84°
60°
3
84°
57°
4
83°
62°
5
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Morris Plains
Morris Plains's August 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 55° and 67°. The average high for August is 82° with an average low of 61°. 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 Morris Plains. See also: September | October | November.
