S
M
T
W
T
F
S
27
78°
55°
28
77°
54°
29
76°
54°
30
77°
53°
1
74°
50°
2
69°
52°
3
76°
53°
4
77°
54°
5
75°
53°
6
71°
54°
7
73°
52°
8
74°
53°
9
74°
53°
10
73°
51°
11
74°
45°
12
61°
41°
13
59°
38°
14
59°
37°
15
58°
36°
16
58°
41°
17
59°
36°
18
56°
35°
19
56°
35°
20
57°
39°
21
56°
36°
22
56°
38°
23
72°
42°
24
71°
41°
25
65°
38°
26
55°
35°
27
53°
29°
28
52°
31°
29
53°
39°
30
56°
44°
31
60°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sidney
Sidney's October 2026 forecast shows daily high temperatures ranging from 52° to 78°, with overnight lows between 29° and 55°. The average high for October is 65° with an average low of 44°. 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 Sidney. See also: November | December | January.