S
M
T
W
T
F
S
27
N/A
28
N/A
29
76°
47°
30
65°
59°
1
65°
56°
2
64°
42°
3
67°
41°
4
69°
49°
5
66°
44°
6
74°
49°
7
75°
54°
8
69°
46°
9
66°
46°
10
81°
58°
11
78°
53°
12
87°
61°
13
76°
61°
14
63°
55°
15
58°
53°
16
55°
37°
17
57°
34°
18
64°
42°
19
68°
41°
20
67°
41°
21
72°
43°
22
72°
45°
23
70°
47°
24
70°
44°
25
76°
53°
26
58°
48°
27
62°
47°
28
71°
57°
29
66°
39°
30
58°
50°
31
57°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sussex
Sussex's October 2026 forecast shows daily high temperatures ranging from 57° to 71°, with overnight lows between 39° and 57°. The average high for October is 63° with an average low of 49°. 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 Sussex. See also: November | December | January.