S
M
T
W
T
F
S
27
88°
62°
28
86°
62°
29
90°
57°
30
92°
59°
1
93°
68°
2
91°
69°
3
90°
72°
4
84°
73°
5
83°
68°
6
87°
65°
7
86°
60°
8
87°
55°
9
79°
60°
10
71°
59°
11
89°
55°
12
90°
57°
13
91°
55°
14
91°
57°
15
89°
58°
16
87°
54°
17
70°
46°
18
71°
42°
19
72°
39°
20
77°
39°
21
80°
43°
22
82°
45°
23
81°
44°
24
77°
46°
25
77°
42°
26
76°
46°
27
77°
45°
28
79°
48°
29
80°
44°
30
82°
63°
31
78°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Heidelberg
Heidelberg's October 2026 forecast shows daily high temperatures ranging from 78° to 82°, with overnight lows between 63° and 65°. The average high for October is 80° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Heidelberg. See also: November | December | January.
