S
M
T
W
T
F
S
26
93°
67°
27
88°
55°
28
91°
58°
29
94°
62°
30
86°
55°
31
87°
52°
1
94°
56°
2
83°
53°
3
65°
49°
4
74°
44°
5
79°
51°
6
80°
48°
7
76°
44°
8
80°
45°
9
79°
46°
10
74°
41°
11
78°
44°
12
75°
52°
13
70°
57°
14
62°
52°
15
72°
47°
16
79°
54°
17
79°
52°
18
77°
53°
19
76°
54°
20
77°
51°
21
72°
52°
22
76°
50°
23
77°
52°
24
81°
53°
25
79°
49°
26
83°
56°
27
82°
56°
28
83°
57°
29
82°
56°
30
82°
55°
31
81°
54°
1
81°
54°
2
80°
53°
3
80°
55°
4
81°
54°
5
80°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Neptune
Neptune's August 2026 forecast shows daily high temperatures ranging from 62° to 83°, with overnight lows between 47° and 57°. The average high for August is 78° 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 Neptune. See also: September | October | November.
