S
M
T
W
T
F
S
27
75°
57°
28
74°
54°
29
69°
52°
30
73°
57°
1
71°
53°
2
66°
52°
3
72°
55°
4
73°
56°
5
74°
55°
6
70°
56°
7
70°
55°
8
71°
56°
9
71°
55°
10
70°
54°
11
71°
50°
12
60°
44°
13
57°
40°
14
56°
39°
15
55°
39°
16
55°
40°
17
56°
39°
18
55°
38°
19
54°
38°
20
54°
37°
21
55°
37°
22
54°
38°
23
70°
49°
24
68°
45°
25
67°
43°
26
58°
40°
27
52°
33°
28
51°
32°
29
50°
37°
30
52°
46°
31
60°
37°
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 50° to 75°, with overnight lows between 32° and 57°. The average high for October is 63° with an average low of 46°. 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.
