S
M
T
W
T
F
S
28
89°
64°
29
90°
66°
30
88°
68°
1
90°
67°
2
87°
71°
3
82°
71°
4
82°
69°
5
81°
72°
6
90°
74°
7
90°
72°
8
91°
71°
9
88°
69°
10
83°
64°
11
81°
61°
12
81°
58°
13
83°
55°
14
88°
58°
15
86°
58°
16
86°
61°
17
87°
61°
18
86°
65°
19
90°
59°
20
83°
53°
21
85°
61°
22
78°
54°
23
80°
51°
24
84°
54°
25
78°
68°
26
83°
67°
27
80°
62°
28
80°
59°
29
71°
52°
30
66°
47°
31
69°
44°
1
71°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Saint Charles
Saint Charles's October 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for October is ° with an average low of °. 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 Saint Charles. See also: November | December | January.
