S
M
T
W
T
F
S
26
71°
54°
27
71°
55°
28
72°
55°
29
71°
54°
30
74°
55°
31
75°
55°
1
72°
54°
2
71°
55°
3
73°
54°
4
67°
52°
5
67°
53°
6
68°
52°
7
67°
52°
8
71°
54°
9
71°
54°
10
72°
53°
11
70°
52°
12
67°
51°
13
68°
52°
14
65°
44°
15
66°
47°
16
69°
54°
17
75°
53°
18
76°
54°
19
75°
53°
20
75°
46°
21
71°
52°
22
75°
54°
23
76°
50°
24
66°
45°
25
67°
46°
26
67°
46°
27
70°
45°
28
68°
47°
29
68°
46°
30
64°
49°
31
68°
52°
1
72°
53°
2
73°
53°
3
72°
52°
4
65°
43°
5
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roche Harbor
Roche Harbor's August 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 43° and 55°. The average high for August is 70° 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 August weather will actually feel in Roche Harbor. See also: September | October | November.
