S
M
T
W
T
F
S
27
59°
56°
28
57°
54°
29
67°
55°
30
70°
57°
1
76°
56°
2
85°
63°
3
67°
42°
4
64°
50°
5
69°
40°
6
60°
35°
7
62°
47°
8
70°
45°
9
70°
45°
10
62°
43°
11
69°
48°
12
68°
53°
13
65°
46°
14
61°
42°
15
63°
44°
16
67°
39°
17
64°
44°
18
63°
43°
19
54°
37°
20
54°
34°
21
52°
33°
22
53°
42°
23
55°
42°
24
56°
41°
25
56°
39°
26
54°
41°
27
53°
38°
28
51°
36°
29
51°
39°
30
61°
41°
31
59°
40°
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 51° to 70°, with overnight lows between 33° and 53°. The average high for October is 60° with an average low of 42°. 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.
