S
M
T
W
T
F
S
27
75°
53°
28
75°
52°
29
74°
51°
30
72°
51°
1
72°
50°
2
73°
52°
3
73°
50°
4
71°
49°
5
70°
49°
6
70°
48°
7
69°
49°
8
70°
49°
9
70°
48°
10
69°
49°
11
70°
48°
12
67°
42°
13
65°
45°
14
61°
45°
15
57°
43°
16
62°
45°
17
58°
44°
18
65°
39°
19
63°
35°
20
52°
33°
21
52°
38°
22
56°
34°
23
55°
39°
24
54°
42°
25
58°
37°
26
54°
31°
27
50°
30°
28
48°
29°
29
48°
33°
30
50°
32°
31
48°
27°
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 75°, with overnight lows between 27° and 53°. The average high for October is 63° with an average low of 43°. 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.
