S
M
T
W
T
F
S
26
85°
62°
27
84°
65°
28
86°
65°
29
86°
66°
30
85°
65°
31
86°
66°
1
85°
66°
2
86°
65°
3
85°
64°
4
84°
63°
5
85°
66°
6
87°
64°
7
80°
60°
8
80°
62°
9
83°
63°
10
79°
64°
11
86°
65°
12
85°
66°
13
87°
64°
14
85°
64°
15
84°
63°
16
84°
64°
17
82°
61°
18
84°
62°
19
84°
61°
20
83°
62°
21
84°
60°
22
79°
52°
23
75°
50°
24
76°
51°
25
76°
51°
26
77°
53°
27
79°
58°
28
79°
59°
29
78°
59°
30
81°
58°
31
82°
59°
1
83°
56°
2
81°
50°
3
73°
57°
4
75°
58°
5
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sleepy Eye
Sleepy Eye's August 2026 forecast shows daily high temperatures ranging from 73° to 87°, with overnight lows between 50° and 66°. The average high for August is 82° with an average low of 61°. 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 Sleepy Eye. See also: September | October | November.