S
M
T
W
T
F
S
31
66°
41°
1
78°
43°
2
81°
48°
3
69°
52°
4
64°
50°
5
63°
48°
6
60°
46°
7
62°
47°
8
57°
49°
9
62°
51°
10
65°
46°
11
67°
43°
12
74°
45°
13
79°
51°
14
85°
53°
15
81°
53°
16
74°
50°
17
76°
51°
18
73°
53°
19
75°
56°
20
71°
53°
21
75°
52°
22
74°
51°
23
73°
52°
24
71°
51°
25
72°
52°
26
70°
51°
27
72°
53°
28
74°
54°
29
75°
53°
30
66°
52°
1
66°
51°
2
68°
52°
3
69°
53°
4
68°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Friday Harbor
Friday Harbor's June 2026 forecast shows daily high temperatures ranging from 66° to 85°, with overnight lows between 50° and 56°. The average high for June is 73° 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 Friday Harbor. See also: July | August | September.