S
M
T
W
T
F
S
29
39°
16°
30
43°
20°
31
28°
10°
1
34°
2°
2
34°
23°
3
37°
24°
4
30°
24°
5
37°
22°
6
24°
3°
7
32°
23°
8
37°
33°
9
40°
23°
10
39°
24°
11
45°
36°
12
45°
32°
13
38°
17°
14
36°
16°
15
38°
24°
16
40°
28°
17
41°
28°
18
42°
29°
19
44°
27°
20
50°
29°
21
51°
28°
22
56°
34°
23
51°
34°
24
47°
30°
25
48°
24°
26
50°
34°
27
54°
34°
28
51°
31°
29
53°
31°
30
51°
34°
1
57°
30°
2
56°
37°
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 24° to 57°, with overnight lows between 3° and 37°. The average high for April is 45° with an average low of 28°. 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.
