S
M
T
W
T
F
S
26
67°
64°
27
75°
62°
28
78°
66°
29
68°
66°
30
67°
63°
31
77°
64°
1
78°
68°
2
80°
67°
3
80°
70°
4
81°
64°
5
82°
60°
6
82°
73°
7
85°
75°
8
83°
74°
9
85°
70°
10
83°
68°
11
85°
69°
12
82°
67°
13
79°
67°
14
78°
66°
15
77°
60°
16
78°
66°
17
74°
67°
18
78°
64°
19
80°
70°
20
80°
65°
21
76°
65°
22
75°
64°
23
78°
65°
24
79°
64°
25
81°
64°
26
80°
66°
27
77°
64°
28
78°
65°
29
77°
62°
30
75°
64°
31
71°
60°
1
70°
61°
2
71°
59°
3
71°
63°
4
72°
64°
5
74°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Harwich Center
Harwich Center's August 2026 forecast shows daily high temperatures ranging from 70° to 81°, with overnight lows between 59° and 70°. 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 Harwich Center. See also: September | October | November.
