S
M
T
W
T
F
S
29
50°
23°
30
68°
36°
31
68°
52°
1
59°
36°
2
45°
36°
3
72°
43°
4
68°
36°
5
54°
32°
6
41°
30°
7
32°
19°
8
51°
29°
9
58°
39°
10
68°
36°
11
50°
29°
12
61°
48°
13
71°
56°
14
78°
54°
15
55°
36°
16
59°
40°
17
56°
39°
18
63°
41°
19
63°
43°
20
67°
48°
21
70°
35°
22
62°
34°
23
52°
32°
24
55°
41°
25
54°
42°
26
54°
38°
27
55°
37°
28
56°
35°
29
56°
35°
30
57°
39°
1
58°
44°
2
67°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Marathon
Marathon's April 2026 forecast shows daily high temperatures ranging from 50° to 78°, with overnight lows between 29° and 56°. The average high for April is 60° with an average low of 40°. 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 Marathon. See also: May | June | July.
