S
M
T
W
T
F
S
26
79°
65°
27
82°
60°
28
78°
58°
29
76°
56°
30
76°
57°
31
77°
57°
1
76°
59°
2
78°
58°
3
77°
59°
4
78°
63°
5
80°
58°
6
77°
57°
7
78°
56°
8
77°
55°
9
77°
56°
10
78°
55°
11
80°
62°
12
81°
63°
13
83°
65°
14
84°
65°
15
84°
59°
16
83°
61°
17
79°
59°
18
76°
58°
19
73°
64°
20
82°
63°
21
83°
64°
22
82°
57°
23
82°
56°
24
77°
55°
25
75°
53°
26
74°
54°
27
Hist. Avg.
79°
57°
28
Hist. Avg.
78°
57°
29
Hist. Avg.
78°
57°
30
Hist. Avg.
78°
57°
31
Hist. Avg.
78°
56°
1
Hist. Avg.
78°
56°
2
Hist. Avg.
78°
56°
3
Hist. Avg.
78°
55°
4
Hist. Avg.
77°
55°
5
Hist. Avg.
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Mankato
Mankato's August 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 53° and 65°. The average high for August is 79° 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 Mankato. See also: September | October | November.
