S
M
T
W
T
F
S
31
90°
82°
1
88°
79°
2
87°
80°
3
84°
79°
4
83°
78°
5
85°
78°
6
86°
80°
7
87°
79°
8
86°
81°
9
87°
79°
10
85°
80°
11
87°
79°
12
86°
80°
13
88°
81°
14
89°
84°
15
88°
81°
16
88°
81°
17
89°
80°
18
89°
81°
19
88°
81°
20
90°
80°
21
90°
81°
22
91°
81°
23
91°
80°
24
92°
81°
25
91°
81°
26
92°
80°
27
90°
80°
28
91°
81°
29
91°
81°
30
92°
80°
1
91°
81°
2
90°
81°
3
89°
80°
4
91°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Marathon
Marathon's June 2026 forecast shows daily high temperatures ranging from 83° to 92°, with overnight lows between 78° and 84°. The average high for June is 89° with an average low of 80°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Marathon. See also: July | August | September.
