S
M
T
W
T
F
S
26
85°
66°
27
86°
65°
28
85°
67°
29
84°
60°
30
87°
59°
31
87°
61°
1
76°
67°
2
75°
61°
3
82°
57°
4
83°
61°
5
84°
64°
6
83°
63°
7
82°
66°
8
86°
67°
9
84°
64°
10
82°
64°
11
80°
60°
12
81°
62°
13
83°
62°
14
81°
61°
15
76°
57°
16
77°
60°
17
86°
66°
18
85°
65°
19
86°
65°
20
84°
64°
21
84°
64°
22
83°
63°
23
84°
65°
24
84°
64°
25
82°
65°
26
82°
64°
27
81°
63°
28
78°
63°
29
80°
61°
30
79°
62°
31
81°
62°
1
83°
61°
2
78°
57°
3
76°
58°
4
77°
59°
5
82°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort Wayne
Fort Wayne's August 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 57° and 67°. The average high for August is 81° with an average low of 62°. 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 Fort Wayne. See also: September | October | November.
