S
M
T
W
T
F
S
26
84°
64°
27
82°
62°
28
77°
60°
29
77°
64°
30
78°
63°
31
81°
65°
1
77°
65°
2
81°
66°
3
82°
64°
4
77°
60°
5
79°
65°
6
84°
65°
7
84°
64°
8
80°
64°
9
78°
60°
10
79°
60°
11
83°
64°
12
83°
65°
13
82°
63°
14
76°
59°
15
80°
61°
16
79°
63°
17
74°
62°
18
79°
60°
19
82°
62°
20
82°
60°
21
74°
54°
22
74°
56°
23
82°
63°
24
82°
62°
25
84°
60°
26
82°
52°
27
77°
51°
28
72°
50°
29
73°
51°
30
75°
54°
31
78°
54°
1
77°
49°
2
73°
48°
3
69°
48°
4
69°
49°
5
70°
48°
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 69° to 84°, with overnight lows between 48° and 66°. 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.
