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
76°
51°
11
76°
51°
12
80°
55°
13
81°
55°
14
80°
53°
15
79°
51°
16
80°
54°
17
80°
59°
18
77°
58°
19
72°
53°
20
71°
54°
21
71°
54°
22
69°
52°
23
65°
50°
24
66°
51°
25
66°
54°
26
67°
52°
27
66°
55°
28
67°
52°
29
66°
51°
30
65°
51°
31
65°
52°
1
67°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Heidelberg
Heidelberg's July 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 50° and 59°. The average high for July is 72° 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 July weather will actually feel in Heidelberg. See also: August | September | October.
