S
M
T
W
T
F
S
26
85°
64°
27
86°
65°
28
86°
64°
29
85°
65°
30
86°
66°
31
85°
65°
1
80°
64°
2
79°
61°
3
78°
59°
4
78°
64°
5
78°
64°
6
79°
60°
7
81°
62°
8
83°
63°
9
84°
64°
10
84°
64°
11
83°
63°
12
84°
63°
13
84°
64°
14
86°
62°
15
87°
64°
16
84°
64°
17
80°
63°
18
85°
64°
19
84°
60°
20
82°
56°
21
79°
54°
22
78°
55°
23
79°
57°
24
79°
56°
25
78°
54°
26
79°
61°
27
78°
56°
28
80°
54°
29
77°
55°
30
77°
54°
31
76°
53°
1
75°
54°
2
77°
57°
3
75°
57°
4
76°
54°
5
78°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Iselin
Iselin's August 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 52° and 66°. The average high for August is 81° with an average low of 60°. 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 Iselin. See also: September | October | November.
