S
M
T
W
T
F
S
26
75°
68°
27
77°
69°
28
81°
69°
29
81°
68°
30
80°
69°
31
76°
69°
1
77°
68°
2
78°
69°
3
78°
69°
4
79°
68°
5
79°
68°
6
76°
67°
7
76°
69°
8
80°
65°
9
74°
63°
10
74°
63°
11
75°
68°
12
75°
67°
13
76°
67°
14
75°
68°
15
76°
68°
16
77°
66°
17
78°
61°
18
75°
59°
19
74°
63°
20
75°
65°
21
74°
63°
22
77°
60°
23
78°
61°
24
74°
60°
25
72°
58°
26
73°
59°
27
73°
59°
28
72°
57°
29
73°
59°
30
73°
64°
31
77°
64°
1
78°
63°
2
79°
64°
3
79°
57°
4
77°
56°
5
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Harwich
West Harwich's August 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 56° and 69°. The average high for August is 76° with an average low of 64°. 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 West Harwich. See also: September | October | November.
