S
M
T
W
T
F
S
29
78°
53°
30
78°
53°
31
76°
53°
1
76°
53°
2
80°
53°
3
74°
49°
4
79°
51°
5
79°
51°
6
78°
57°
7
69°
57°
8
71°
49°
9
73°
50°
10
74°
50°
11
76°
50°
12
73°
53°
13
62°
54°
14
69°
53°
15
66°
51°
16
70°
53°
17
73°
55°
18
70°
54°
19
71°
56°
20
73°
54°
21
73°
52°
22
67°
51°
23
68°
51°
24
69°
52°
25
67°
50°
26
74°
51°
27
71°
49°
28
69°
48°
29
67°
54°
30
68°
52°
1
67°
47°
2
67°
48°
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 67° to 74°, with overnight lows between 47° and 56°. The average high for April is 70° with an average low of 52°. 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.
