S
M
T
W
T
F
S
26
80°
57°
27
80°
56°
28
78°
57°
29
78°
56°
30
76°
55°
31
71°
55°
1
72°
56°
2
74°
55°
3
75°
55°
4
74°
54°
5
71°
54°
6
70°
55°
7
73°
55°
8
76°
54°
9
77°
55°
10
76°
55°
11
76°
54°
12
77°
55°
13
77°
55°
14
75°
54°
15
70°
53°
16
69°
53°
17
70°
52°
18
73°
53°
19
74°
54°
20
74°
54°
21
70°
44°
22
67°
44°
23
66°
45°
24
69°
49°
25
67°
46°
26
69°
44°
27
68°
46°
28
68°
51°
29
67°
49°
30
75°
42°
31
66°
44°
1
71°
51°
2
72°
49°
3
71°
45°
4
69°
44°
5
72°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lake St. Peter
Lake St. Peter's August 2026 forecast shows daily high temperatures ranging from 66° to 80°, with overnight lows between 42° and 57°. The average high for August is 72° with an average low of 51°. 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 Lake St. Peter. See also: September | October | November.
