S
M
T
W
T
F
S
27
80°
45°
28
80°
43°
29
70°
49°
30
67°
48°
1
68°
50°
2
69°
48°
3
66°
44°
4
68°
50°
5
72°
52°
6
74°
52°
7
73°
45°
8
74°
40°
9
65°
38°
10
64°
43°
11
62°
38°
12
70°
37°
13
62°
37°
14
59°
40°
15
62°
47°
16
65°
47°
17
61°
48°
18
63°
45°
19
69°
43°
20
66°
38°
21
59°
34°
22
58°
35°
23
57°
41°
24
58°
40°
25
Hist. Avg.
61°
38°
26
Hist. Avg.
60°
38°
27
Hist. Avg.
60°
38°
28
Hist. Avg.
60°
37°
29
Hist. Avg.
59°
37°
30
Hist. Avg.
59°
37°
31
Hist. Avg.
58°
36°
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 57° to 80°, with overnight lows between 34° and 52°. The average high for October is 66° 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 Sidney. See also: November | December | January.