S
M
T
W
T
F
S
1
16°
-5°
2
20°
-9°
3
34°
9°
4
46°
20°
5
30°
17°
6
33°
15°
7
51°
31°
8
49°
38°
9
59°
38°
10
53°
33°
11
33°
28°
12
33°
20°
13
30°
18°
14
33°
16°
15
30°
10°
16
61°
29°
17
32°
10°
18
24°
1°
19
35°
21°
20
29°
20°
21
37°
24°
22
33°
23°
23
36°
21°
24
36°
18°
25
38°
23°
26
37°
26°
27
26°
11°
28
32°
13°
29
49°
23°
30
61°
29°
31
41°
33°
1
38°
28°
2
42°
26°
3
69°
36°
4
39°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Marathon
Marathon's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Marathon. See also: April | May | June.