S
M
T
W
T
F
S
27
73°
54°
28
77°
51°
29
82°
64°
30
86°
67°
1
80°
68°
2
75°
62°
3
76°
61°
4
72°
53°
5
69°
52°
6
69°
52°
7
71°
54°
8
71°
55°
9
73°
55°
10
71°
52°
11
66°
52°
12
76°
57°
13
74°
48°
14
63°
45°
15
64°
47°
16
68°
51°
17
73°
55°
18
74°
55°
19
74°
56°
20
73°
55°
21
73°
49°
22
62°
45°
23
61°
47°
24
69°
52°
25
72°
53°
26
72°
52°
27
65°
47°
28
66°
53°
29
69°
54°
30
70°
53°
31
69°
53°
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 61° to 86°, with overnight lows between 45° and 68°. The average high for October is 71° with an average low of 54°. 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.
