S
M
T
W
T
F
S
27
86°
48°
28
84°
59°
29
84°
57°
30
86°
59°
1
72°
63°
2
73°
57°
3
73°
52°
4
75°
52°
5
73°
50°
6
82°
47°
7
82°
43°
8
61°
38°
9
56°
38°
10
67°
51°
11
65°
35°
12
69°
34°
13
61°
34°
14
73°
44°
15
68°
43°
16
70°
45°
17
61°
48°
18
54°
46°
19
64°
48°
20
55°
49°
21
53°
48°
22
58°
43°
23
62°
50°
24
55°
47°
25
57°
47°
26
56°
45°
27
64°
50°
28
58°
37°
29
57°
39°
30
57°
40°
31
54°
39°
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 54° to 64°, with overnight lows between 37° and 50°. The average high for October is 58° with an average low of 41°. 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.
