S
M
T
W
T
F
S
27
85°
59°
28
85°
57°
29
76°
54°
30
78°
58°
1
83°
58°
2
84°
57°
3
84°
57°
4
83°
58°
5
84°
59°
6
84°
58°
7
82°
54°
8
84°
56°
9
74°
50°
10
74°
50°
11
72°
56°
12
72°
57°
13
80°
57°
14
80°
55°
15
81°
56°
16
74°
53°
17
78°
44°
18
70°
44°
19
70°
45°
20
73°
51°
21
74°
52°
22
77°
53°
23
77°
47°
24
72°
42°
25
68°
48°
26
71°
51°
27
70°
43°
28
70°
38°
29
67°
37°
30
63°
41°
31
69°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sycamore
Sycamore's October 2026 forecast shows daily high temperatures ranging from 63° to 85°, with overnight lows between 37° and 59°. The average high for October is 76° with an average low of 51°. 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 Sycamore. See also: November | December | January.
