S
M
T
W
T
F
S
29
43°
32°
30
41°
32°
31
43°
32°
1
45°
32°
2
52°
28°
3
55°
30°
4
55°
43°
5
70°
41°
6
61°
45°
7
64°
39°
8
63°
37°
9
63°
45°
10
54°
40°
11
69°
46°
12
50°
41°
13
52°
42°
14
52°
42°
15
55°
41°
16
57°
41°
17
60°
40°
18
64°
42°
19
61°
42°
20
64°
43°
21
65°
44°
22
52°
38°
23
53°
39°
24
52°
37°
25
52°
37°
26
53°
38°
27
54°
37°
28
61°
44°
29
61°
39°
30
62°
46°
1
62°
41°
2
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Illertissen
Illertissen's April 2026 forecast shows daily high temperatures ranging from 50° to 69°, with overnight lows between 37° and 46°. The average high for April 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 April weather will actually feel in Illertissen. See also: May | June | July.
