S
M
T
W
T
F
S
28
84°
56°
29
90°
67°
30
91°
74°
1
93°
77°
2
92°
73°
3
90°
70°
4
82°
68°
5
77°
66°
6
82°
59°
7
85°
53°
8
87°
61°
9
84°
68°
10
82°
64°
11
82°
62°
12
83°
56°
13
90°
60°
14
96°
69°
15
95°
68°
16
85°
58°
17
87°
57°
18
88°
63°
19
79°
54°
20
83°
51°
21
85°
57°
22
75°
49°
23
81°
44°
24
82°
48°
25
82°
50°
26
88°
66°
27
85°
65°
28
82°
59°
29
83°
53°
30
91°
55°
31
86°
57°
1
73°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Louis
St. Louis's July 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in St. Louis. See also: August | September | October.