S
M
T
W
T
F
S
26
84°
65°
27
83°
64°
28
84°
65°
29
82°
61°
30
78°
63°
31
77°
61°
1
76°
63°
2
75°
61°
3
78°
65°
4
78°
62°
5
77°
62°
6
76°
58°
7
75°
57°
8
75°
59°
9
76°
57°
10
74°
56°
11
75°
57°
12
78°
64°
13
84°
65°
14
83°
64°
15
80°
63°
16
80°
64°
17
82°
64°
18
80°
63°
19
74°
58°
20
75°
60°
21
74°
57°
22
73°
54°
23
72°
54°
24
73°
60°
25
76°
62°
26
79°
61°
27
79°
62°
28
74°
50°
29
78°
50°
30
79°
54°
31
78°
58°
1
79°
57°
2
81°
60°
3
82°
51°
4
79°
50°
5
77°
57°
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 72° to 84°, with overnight lows between 50° and 65°. The average high for August is 78° with an average low of 59°. 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.
