S
M
T
W
T
F
S
27
75°
39°
28
76°
40°
29
78°
42°
30
63°
58°
1
68°
60°
2
66°
41°
3
65°
36°
4
71°
42°
5
63°
37°
6
71°
33°
7
76°
48°
8
67°
40°
9
70°
37°
10
79°
47°
11
70°
46°
12
85°
54°
13
81°
53°
14
64°
47°
15
59°
50°
16
54°
30°
17
55°
38°
18
62°
45°
19
62°
44°
20
65°
43°
21
68°
49°
22
65°
47°
23
60°
47°
24
61°
44°
25
58°
42°
26
55°
38°
27
58°
32°
28
48°
30°
29
48°
38°
30
52°
38°
31
58°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Louis
St. Louis's October 2026 forecast shows daily high temperatures ranging from 48° to 81°, with overnight lows between 30° and 53°. The average high for October is 60° with an average low of 42°. 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. Louis. See also: November | December | January.
