S
M
T
W
T
F
S
26
104°
80°
27
99°
80°
28
96°
78°
29
93°
76°
30
85°
70°
31
79°
66°
1
87°
63°
2
88°
64°
3
89°
67°
4
84°
63°
5
81°
64°
6
83°
69°
7
86°
72°
8
87°
71°
9
93°
71°
10
91°
69°
11
90°
68°
12
93°
69°
13
86°
66°
14
82°
68°
15
86°
70°
16
90°
71°
17
90°
70°
18
88°
67°
19
85°
65°
20
87°
69°
21
80°
67°
22
83°
64°
23
81°
63°
24
82°
61°
25
80°
60°
26
80°
63°
27
83°
68°
28
87°
68°
29
82°
67°
30
77°
67°
31
85°
68°
1
87°
66°
2
87°
64°
3
85°
67°
4
87°
67°
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 77° to 93°, with overnight lows between 60° and 72°. The average high for August is 86° with an average low of 67°. 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.