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°
50°
10
90°
61°
11
91°
65°
12
86°
55°
13
61°
47°
14
52°
47°
15
50°
45°
16
52°
37°
17
61°
31°
18
71°
45°
19
66°
39°
20
69°
42°
21
73°
47°
22
78°
46°
23
72°
57°
24
75°
50°
25
53°
46°
26
48°
42°
27
54°
45°
28
73°
51°
29
59°
38°
30
56°
47°
31
57°
52°
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 56° to 59°, with overnight lows between 38° and 52°. The average high for October is 57° with an average low of 46°. 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.
