S
M
T
W
T
F
S
27
64°
55°
28
N/A
29
67°
58°
30
73°
58°
1
80°
57°
2
83°
58°
3
72°
51°
4
59°
46°
5
65°
49°
6
60°
37°
7
68°
48°
8
74°
44°
9
69°
43°
10
69°
52°
11
64°
60°
12
68°
55°
13
69°
51°
14
62°
48°
15
63°
44°
16
64°
51°
17
62°
47°
18
61°
45°
19
62°
42°
20
57°
37°
21
55°
39°
22
54°
45°
23
55°
41°
24
59°
44°
25
55°
42°
26
53°
40°
27
52°
37°
28
52°
37°
29
54°
40°
30
62°
43°
31
62°
44°
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 52° to 74°, with overnight lows between 37° and 60°. The average high for October is 61° with an average low of 44°. 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.
