S
M
T
W
T
F
S
26
78°
59°
27
77°
58°
28
78°
59°
29
78°
59°
30
79°
60°
31
78°
59°
1
78°
59°
2
79°
64°
3
79°
65°
4
80°
59°
5
79°
62°
6
83°
59°
7
84°
66°
8
85°
66°
9
84°
67°
10
85°
65°
11
84°
57°
12
79°
59°
13
78°
58°
14
79°
57°
15
78°
63°
16
78°
57°
17
Hist. Avg.
80°
62°
18
Hist. Avg.
80°
61°
19
Hist. Avg.
80°
61°
20
Hist. Avg.
80°
61°
21
Hist. Avg.
80°
61°
22
Hist. Avg.
80°
61°
23
Hist. Avg.
80°
60°
24
Hist. Avg.
80°
60°
25
Hist. Avg.
80°
60°
26
Hist. Avg.
79°
60°
27
Hist. Avg.
79°
60°
28
Hist. Avg.
79°
59°
29
Hist. Avg.
79°
59°
30
Hist. Avg.
79°
59°
31
Hist. Avg.
78°
59°
1
Hist. Avg.
78°
58°
2
Hist. Avg.
78°
58°
3
Hist. Avg.
78°
58°
4
Hist. Avg.
78°
58°
5
Hist. Avg.
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Grand Island
Grand Island's August 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 57° and 67°. The average high for August is 80° with an average low of 61°. 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 Grand Island. See also: September | October | November.
