S
M
T
W
T
F
S
27
82°
62°
28
85°
63°
29
85°
64°
30
84°
64°
1
83°
63°
2
84°
62°
3
84°
62°
4
83°
61°
5
83°
63°
6
82°
62°
7
81°
63°
8
82°
62°
9
82°
62°
10
81°
61°
11
82°
60°
12
82°
59°
13
73°
57°
14
70°
49°
15
69°
48°
16
69°
47°
17
70°
51°
18
75°
55°
19
73°
49°
20
68°
47°
21
69°
50°
22
68°
50°
23
80°
56°
24
80°
56°
25
79°
55°
26
80°
51°
27
78°
43°
28
69°
44°
29
66°
52°
30
65°
53°
31
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Elgin
Elgin's October 2026 forecast shows daily high temperatures ranging from 65° to 85°, with overnight lows between 43° and 64°. The average high for October is 77° with an average low of 56°. 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 Elgin. See also: November | December | January.