S
M
T
W
T
F
S
28
102°
79°
29
81°
66°
30
73°
66°
1
70°
61°
2
81°
59°
3
70°
57°
4
68°
55°
5
73°
59°
6
66°
59°
7
77°
63°
8
73°
55°
9
73°
55°
10
81°
55°
11
N/A
12
80°
54°
13
80°
57°
14
80°
56°
15
81°
57°
16
83°
58°
17
83°
61°
18
81°
60°
19
75°
56°
20
72°
53°
21
70°
52°
22
71°
53°
23
72°
54°
24
75°
56°
25
74°
58°
26
73°
57°
27
74°
57°
28
70°
56°
29
70°
54°
30
73°
55°
31
68°
51°
1
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Heidelberg
Heidelberg's July 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 50° and 61°. The average high for July is 75° with an average low of 55°. 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 Heidelberg. See also: August | September | October.
