S
M
T
W
T
F
S
31
70°
46°
1
78°
46°
2
80°
52°
3
72°
57°
4
69°
50°
5
65°
52°
6
61°
48°
7
64°
49°
8
56°
51°
9
65°
51°
10
65°
48°
11
68°
47°
12
72°
47°
13
81°
51°
14
86°
55°
15
76°
58°
16
76°
56°
17
72°
50°
18
74°
50°
19
74°
51°
20
67°
50°
21
75°
50°
22
88°
53°
23
85°
57°
24
86°
59°
25
70°
56°
26
68°
54°
27
68°
54°
28
67°
53°
29
67°
55°
30
65°
54°
1
64°
53°
2
58°
54°
3
66°
51°
4
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Roche Harbor
Roche Harbor's June 2026 forecast shows daily high temperatures ranging from 58° to 69°, with overnight lows between 51° and 54°. The average high for June is 64° with an average low of 52°. 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 Roche Harbor. See also: July | August | September.