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
81°
67°
2
80°
63°
3
79°
56°
4
83°
58°
5
84°
64°
6
79°
63°
7
82°
63°
8
84°
66°
9
86°
68°
10
90°
67°
11
89°
66°
12
87°
64°
13
83°
64°
14
82°
65°
15
84°
63°
16
81°
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 76° to 90°, with overnight lows between 56° and 68°. The average high for August is 83° 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 Fort Wayne. See also: September | October | November.
