S
M
T
W
T
F
S
26
98°
70°
27
99°
71°
28
100°
72°
29
97°
68°
30
97°
67°
31
100°
70°
1
89°
68°
2
93°
61°
3
95°
66°
4
97°
67°
5
96°
70°
6
94°
72°
7
95°
69°
8
93°
64°
9
92°
62°
10
93°
68°
11
97°
73°
12
97°
70°
13
98°
69°
14
90°
63°
15
90°
64°
16
86°
65°
17
91°
64°
18
92°
62°
19
97°
62°
20
97°
67°
21
95°
63°
22
94°
61°
23
95°
62°
24
98°
70°
25
98°
66°
26
97°
68°
27
90°
68°
28
93°
64°
29
94°
66°
30
92°
71°
31
95°
70°
1
89°
69°
2
93°
68°
3
94°
72°
4
92°
70°
5
94°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Marathon
Marathon's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August 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 August weather will actually feel in Marathon. See also: September | October | November.
