S
M
T
W
T
F
S
31
60°
49°
1
60°
50°
2
63°
51°
3
65°
54°
4
66°
45°
5
59°
52°
6
63°
49°
7
60°
46°
8
66°
48°
9
66°
55°
10
65°
51°
11
58°
50°
12
61°
56°
13
67°
54°
14
69°
55°
15
68°
53°
16
68°
54°
17
67°
51°
18
68°
57°
19
68°
53°
20
65°
55°
21
65°
50°
22
67°
49°
23
63°
48°
24
62°
49°
25
61°
48°
26
62°
49°
27
62°
52°
28
60°
50°
29
59°
47°
30
60°
47°
1
61°
55°
2
64°
50°
3
61°
48°
4
61°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Coos Bay
Coos Bay's June 2026 forecast shows daily high temperatures ranging from 58° to 69°, with overnight lows between 45° and 57°. The average high for June is 63° with an average low of 51°. 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 Coos Bay. See also: July | August | September.