S
M
T
W
T
F
S
27
79°
55°
28
82°
51°
29
79°
50°
30
82°
56°
1
83°
48°
2
83°
43°
3
81°
43°
4
70°
42°
5
71°
43°
6
72°
45°
7
74°
52°
8
71°
52°
9
72°
53°
10
73°
54°
11
81°
51°
12
80°
42°
13
74°
40°
14
66°
40°
15
65°
38°
16
66°
39°
17
67°
40°
18
67°
39°
19
68°
42°
20
69°
47°
21
71°
47°
22
74°
48°
23
76°
46°
24
72°
43°
25
69°
42°
26
70°
39°
27
67°
37°
28
66°
44°
29
Hist. Avg.
69°
43°
30
Hist. Avg.
69°
42°
31
Hist. Avg.
69°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Sidney
Sidney's October 2026 forecast shows daily high temperatures ranging from 65° to 83°, with overnight lows between 37° and 56°. The average high for October is 73° with an average low of 45°. 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.
