S
M
T
W
T
F
S
31
55°
36°
1
58°
39°
2
65°
43°
3
65°
46°
4
71°
52°
5
81°
55°
6
75°
53°
7
73°
51°
8
71°
52°
9
72°
51°
10
70°
52°
11
72°
54°
12
71°
53°
13
72°
54°
14
71°
52°
15
69°
48°
16
68°
49°
17
69°
53°
18
70°
52°
19
71°
52°
20
71°
50°
21
72°
50°
22
71°
51°
23
71°
50°
24
70°
57°
25
70°
57°
26
72°
56°
27
73°
56°
28
72°
56°
29
72°
53°
30
70°
52°
1
72°
52°
2
73°
56°
3
74°
59°
4
74°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Prospect Harbor
Prospect Harbor's June 2026 forecast shows daily high temperatures ranging from 58° to 81°, with overnight lows between 39° and 59°. The average high for June is 71° 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 Prospect Harbor. See also: July | August | September.
