S
M
T
W
T
F
S
26
77°
58°
27
78°
56°
28
76°
60°
29
78°
57°
30
79°
58°
31
79°
55°
1
81°
57°
2
80°
59°
3
81°
55°
4
77°
53°
5
75°
54°
6
75°
58°
7
77°
58°
8
82°
55°
9
78°
52°
10
76°
58°
11
81°
51°
12
80°
51°
13
74°
58°
14
78°
59°
15
81°
51°
16
79°
51°
17
74°
50°
18
73°
50°
19
73°
51°
20
75°
51°
21
73°
50°
22
72°
54°
23
76°
55°
24
77°
50°
25
75°
48°
26
71°
47°
27
69°
47°
28
70°
48°
29
69°
48°
30
70°
53°
31
73°
55°
1
77°
55°
2
76°
53°
3
76°
47°
4
74°
52°
5
74°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in New Jersey
New Jersey's August 2026 forecast shows daily high temperatures ranging from 69° to 82°, with overnight lows between 45° and 60°. The average high for August is 76° with an average low of 53°. 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 New Jersey. See also: September | October | November.