S
M
T
W
T
F
S
26
72°
59°
27
73°
56°
28
70°
58°
29
74°
60°
30
72°
60°
31
75°
59°
1
77°
60°
2
77°
60°
3
76°
59°
4
77°
60°
5
76°
59°
6
77°
60°
7
74°
58°
8
73°
57°
9
71°
57°
10
70°
54°
11
72°
60°
12
73°
55°
13
70°
54°
14
Hist. Avg.
70°
53°
15
Hist. Avg.
70°
53°
16
Hist. Avg.
70°
53°
17
Hist. Avg.
70°
53°
18
Hist. Avg.
70°
53°
19
Hist. Avg.
70°
53°
20
Hist. Avg.
69°
53°
21
Hist. Avg.
69°
53°
22
Hist. Avg.
69°
52°
23
Hist. Avg.
69°
52°
24
Hist. Avg.
69°
52°
25
Hist. Avg.
69°
52°
26
Hist. Avg.
69°
52°
27
Hist. Avg.
68°
52°
28
Hist. Avg.
68°
52°
29
Hist. Avg.
68°
52°
30
Hist. Avg.
68°
52°
31
Hist. Avg.
68°
52°
1
Hist. Avg.
68°
52°
2
Hist. Avg.
67°
51°
3
Hist. Avg.
67°
51°
4
Hist. Avg.
67°
51°
5
Hist. Avg.
67°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Harwich
Harwich's August 2026 forecast shows daily high temperatures ranging from 70° to 77°, with overnight lows between 54° and 60°. The average high for August is 74° with an average low of 58°. 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. See also: September | October | November.
