S
M
T
W
T
F
S
27
65°
58°
28
70°
55°
29
69°
59°
30
75°
62°
1
67°
49°
2
64°
39°
3
74°
50°
4
69°
44°
5
73°
41°
6
84°
58°
7
75°
48°
8
69°
45°
9
73°
60°
10
86°
59°
11
82°
55°
12
64°
49°
13
59°
42°
14
58°
51°
15
65°
43°
16
55°
37°
17
52°
37°
18
57°
41°
19
60°
40°
20
60°
42°
21
61°
42°
22
56°
34°
23
54°
34°
24
60°
41°
25
61°
37°
26
55°
39°
27
57°
30°
28
46°
31°
29
54°
38°
30
54°
33°
31
57°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Clair
St. Clair's October 2026 forecast shows daily high temperatures ranging from 46° to 86°, with overnight lows between 30° and 60°. The average high for October is 60° with an average low of 41°. 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 St. Clair. See also: November | December | January.
