S
M
T
W
T
F
S
28
93°
73°
29
93°
73°
30
96°
77°
1
95°
74°
2
96°
72°
3
93°
75°
4
91°
71°
5
87°
68°
6
87°
69°
7
88°
71°
8
87°
70°
9
85°
72°
10
88°
71°
11
84°
71°
12
87°
71°
13
88°
67°
14
91°
67°
15
92°
72°
16
90°
72°
17
88°
72°
18
91°
73°
19
94°
72°
20
94°
73°
21
88°
65°
22
86°
65°
23
81°
62°
24
86°
66°
25
90°
67°
26
90°
66°
27
88°
68°
28
89°
67°
29
87°
68°
30
85°
71°
31
93°
71°
1
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Herculaneum
Herculaneum's July 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 62° and 73°. The average high for July is 89° with an average low of 69°. 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 Herculaneum. See also: August | September | October.
