S
M
T
W
T
F
S
26
87°
67°
27
89°
68°
28
90°
69°
29
91°
69°
30
89°
68°
31
89°
69°
1
90°
69°
2
91°
70°
3
91°
69°
4
90°
68°
5
90°
68°
6
89°
69°
7
90°
67°
8
87°
63°
9
84°
64°
10
84°
67°
11
90°
69°
12
91°
70°
13
91°
69°
14
90°
68°
15
89°
67°
16
87°
64°
17
84°
65°
18
84°
65°
19
87°
63°
20
88°
64°
21
89°
65°
22
88°
61°
23
83°
58°
24
79°
57°
25
79°
56°
26
80°
56°
27
80°
55°
28
81°
55°
29
81°
59°
30
83°
62°
31
83°
62°
1
86°
61°
2
87°
61°
3
86°
54°
4
79°
57°
5
78°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Banner
Banner's August 2026 forecast shows daily high temperatures ranging from 78° to 91°, with overnight lows between 54° and 70°. The average high for August is 86° with an average low of 64°. 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 Banner. See also: September | October | November.
