S
M
T
W
T
F
S
27
57°
34°
28
57°
32°
29
52°
33°
30
51°
35°
1
53°
31°
2
50°
34°
3
52°
41°
4
59°
41°
5
58°
43°
6
63°
36°
7
60°
35°
8
52°
41°
9
52°
37°
10
53°
31°
11
49°
32°
12
47°
34°
13
58°
30°
14
54°
36°
15
46°
39°
16
52°
32°
17
52°
30°
18
46°
29°
19
44°
28°
20
46°
29°
21
48°
32°
22
47°
31°
23
43°
32°
24
41°
32°
25
Hist. Avg.
N/A
26
Hist. Avg.
N/A
27
Hist. Avg.
N/A
28
Hist. Avg.
N/A
29
Hist. Avg.
N/A
30
Hist. Avg.
N/A
31
Hist. Avg.
N/A
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Shannon
Shannon's October 2026 forecast shows daily high temperatures ranging from 41° to 63°, with overnight lows between 28° and 43°. The average high for October is 52° with an average low of 34°. 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 Shannon. See also: November | December | January.
