S
M
T
W
T
F
S
26
88°
69°
27
88°
68°
28
87°
67°
29
87°
67°
30
86°
66°
31
85°
67°
1
86°
67°
2
85°
66°
3
86°
67°
4
86°
67°
5
85°
66°
6
80°
65°
7
80°
64°
8
82°
65°
9
78°
62°
10
79°
66°
11
83°
66°
12
85°
57°
13
84°
56°
14
80°
65°
15
83°
59°
16
86°
55°
17
75°
54°
18
73°
52°
19
73°
53°
20
74°
54°
21
75°
54°
22
74°
55°
23
75°
57°
24
75°
61°
25
80°
53°
26
75°
52°
27
73°
52°
28
73°
54°
29
79°
60°
30
80°
59°
31
82°
50°
1
74°
50°
2
71°
56°
3
72°
59°
4
80°
50°
5
81°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Peter
St. Peter's August 2026 forecast shows daily high temperatures ranging from 71° to 88°, with overnight lows between 47° and 69°. The average high for August is 80° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in St. Peter. See also: September | October | November.
