S
M
T
W
T
F
S
26
87°
68°
27
88°
70°
28
78°
62°
29
80°
59°
30
83°
58°
31
83°
61°
1
75°
68°
2
80°
64°
3
83°
59°
4
82°
62°
5
82°
68°
6
78°
66°
7
87°
65°
8
88°
66°
9
86°
59°
10
87°
62°
11
75°
68°
12
82°
67°
13
79°
67°
14
82°
66°
15
80°
71°
16
83°
64°
17
77°
58°
18
78°
62°
19
79°
63°
20
81°
62°
21
80°
61°
22
80°
60°
23
79°
61°
24
78°
60°
25
77°
63°
26
82°
65°
27
82°
64°
28
81°
62°
29
75°
58°
30
74°
58°
31
74°
55°
1
75°
60°
2
78°
62°
3
77°
63°
4
80°
62°
5
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mishawaka
Mishawaka's August 2026 forecast shows daily high temperatures ranging from 74° to 83°, with overnight lows between 55° and 71°. The average high for August is 79° with an average low of 63°. 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 Mishawaka. See also: September | October | November.