S
M
T
W
T
F
S
28
94°
73°
29
93°
77°
30
95°
77°
1
96°
75°
2
96°
76°
3
95°
75°
4
94°
74°
5
91°
72°
6
87°
73°
7
88°
71°
8
89°
70°
9
90°
69°
10
88°
69°
11
88°
71°
12
90°
72°
13
91°
70°
14
88°
68°
15
84°
64°
16
85°
65°
17
84°
64°
18
86°
69°
19
91°
72°
20
91°
72°
21
92°
71°
22
91°
72°
23
92°
73°
24
92°
72°
25
91°
72°
26
92°
73°
27
93°
73°
28
93°
72°
29
94°
71°
30
92°
72°
31
92°
72°
1
90°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Peters
St. Peters's July 2026 forecast shows daily high temperatures ranging from 84° to 96°, with overnight lows between 64° and 76°. The average high for July is 91° with an average low of 71°. 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. Peters. See also: August | September | October.
