S
M
T
W
T
F
S
26
94°
75°
27
94°
75°
28
93°
74°
29
94°
75°
30
93°
74°
31
93°
73°
1
92°
72°
2
91°
73°
3
89°
73°
4
91°
72°
5
92°
73°
6
92°
73°
7
91°
72°
8
92°
72°
9
92°
71°
10
91°
72°
11
91°
72°
12
90°
71°
13
90°
70°
14
91°
68°
15
92°
71°
16
92°
70°
17
90°
69°
18
91°
70°
19
88°
64°
20
85°
62°
21
82°
60°
22
83°
62°
23
84°
61°
24
86°
62°
25
89°
62°
26
89°
63°
27
90°
66°
28
91°
67°
29
90°
67°
30
90°
68°
31
89°
67°
1
89°
65°
2
88°
59°
3
81°
59°
4
82°
65°
5
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Omaha
Omaha's August 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 59° and 75°. The average high for August is 90° with an average low of 68°. 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 Omaha. See also: September | October | November.