S
M
T
W
T
F
S
26
64°
51°
27
63°
51°
28
63°
52°
29
64°
46°
30
69°
48°
31
65°
47°
1
67°
45°
2
61°
44°
3
62°
43°
4
66°
42°
5
66°
48°
6
70°
42°
7
71°
46°
8
70°
48°
9
66°
47°
10
61°
48°
11
59°
46°
12
60°
41°
13
59°
44°
14
61°
42°
15
58°
40°
16
59°
39°
17
61°
46°
18
63°
46°
19
58°
44°
20
60°
41°
21
57°
37°
22
55°
37°
23
60°
41°
24
59°
42°
25
56°
38°
26
59°
45°
27
58°
47°
28
64°
44°
29
63°
44°
30
64°
43°
31
65°
43°
1
63°
40°
2
56°
30°
3
55°
33°
4
52°
34°
5
50°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Evansville
Evansville's August 2026 forecast shows daily high temperatures ranging from 50° to 71°, with overnight lows between 30° and 52°. The average high for August is 61° with an average low of 43°. 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 Evansville. See also: September | October | November.