S
M
T
W
T
F
S
28
94°
73°
29
93°
77°
30
95°
77°
1
93°
76°
2
96°
74°
3
94°
74°
4
94°
69°
5
85°
69°
6
86°
68°
7
87°
70°
8
90°
69°
9
83°
71°
10
87°
71°
11
83°
71°
12
87°
68°
13
87°
64°
14
91°
69°
15
92°
73°
16
91°
73°
17
88°
73°
18
91°
75°
19
94°
74°
20
91°
70°
21
88°
67°
22
86°
66°
23
82°
62°
24
86°
68°
25
85°
68°
26
88°
70°
27
87°
67°
28
90°
71°
29
85°
68°
30
84°
70°
31
84°
68°
1
87°
72°
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 82° to 94°, with overnight lows between 62° and 75°. The average high for July is 88° with an average low of 70°. 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.
