S
M
T
W
T
F
S
27
73°
43°
28
75°
45°
29
77°
45°
30
79°
54°
1
86°
59°
2
73°
57°
3
70°
46°
4
75°
46°
5
70°
38°
6
67°
38°
7
77°
44°
8
72°
42°
9
75°
45°
10
74°
51°
11
70°
54°
12
74°
55°
13
70°
47°
14
65°
45°
15
65°
44°
16
62°
44°
17
60°
41°
18
69°
46°
19
59°
38°
20
63°
42°
21
59°
45°
22
58°
39°
23
59°
41°
24
59°
37°
25
55°
36°
26
55°
38°
27
54°
33°
28
54°
34°
29
59°
41°
30
65°
44°
31
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Londonderry
Londonderry's October 2026 forecast shows daily high temperatures ranging from 54° to 77°, with overnight lows between 33° and 55°. The average high for October is 65° with an average low of 43°. 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 Londonderry. See also: November | December | January.
