S
M
T
W
T
F
S
27
67°
60°
28
69°
59°
29
62°
56°
30
66°
58°
1
70°
60°
2
72°
64°
3
66°
56°
4
63°
56°
5
67°
50°
6
60°
42°
7
63°
41°
8
71°
50°
9
69°
50°
10
62°
49°
11
65°
59°
12
67°
57°
13
66°
52°
14
58°
45°
15
55°
46°
16
58°
49°
17
61°
48°
18
58°
48°
19
59°
47°
20
58°
49°
21
59°
44°
22
55°
50°
23
56°
44°
24
54°
42°
25
55°
49°
26
60°
49°
27
61°
40°
28
52°
39°
29
51°
38°
30
53°
47°
31
57°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Harwich Port
Harwich Port's October 2026 forecast shows daily high temperatures ranging from 51° to 71°, with overnight lows between 38° and 59°. The average high for October is 59° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Harwich Port. See also: November | December | January.