S
M
T
W
T
F
S
29
78°
43°
30
79°
60°
31
85°
65°
1
85°
65°
2
84°
63°
3
85°
64°
4
86°
62°
5
72°
52°
6
67°
44°
7
77°
41°
8
77°
47°
9
77°
51°
10
80°
51°
11
85°
54°
12
84°
57°
13
86°
62°
14
84°
60°
15
83°
63°
16
84°
62°
17
85°
61°
18
86°
62°
19
84°
64°
20
85°
64°
21
86°
63°
22
79°
53°
23
81°
58°
24
81°
60°
25
80°
59°
26
80°
58°
27
81°
59°
28
78°
59°
29
82°
60°
30
82°
60°
1
81°
61°
2
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Heidelberg
Heidelberg's April 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 51° and 64°. The average high for April is 82° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Heidelberg. See also: May | June | July.
