S
M
T
W
T
F
S
26
78°
60°
27
79°
62°
28
79°
66°
29
81°
66°
30
83°
67°
31
84°
68°
1
86°
68°
2
87°
69°
3
87°
69°
4
86°
61°
5
82°
60°
6
78°
60°
7
77°
59°
8
78°
59°
9
79°
60°
10
80°
61°
11
81°
66°
12
80°
67°
13
84°
68°
14
83°
67°
15
86°
66°
16
85°
61°
17
80°
60°
18
77°
59°
19
78°
59°
20
78°
62°
21
79°
63°
22
77°
60°
23
78°
62°
24
81°
65°
25
80°
59°
26
82°
59°
27
77°
60°
28
77°
67°
29
84°
66°
30
83°
67°
31
83°
64°
1
82°
65°
2
81°
63°
3
82°
61°
4
76°
61°
5
81°
63°
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 87°, with overnight lows between 59° and 69°. The average high for August is 81° 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.
