S
M
T
W
T
F
S
26
85°
66°
27
83°
61°
28
82°
61°
29
83°
62°
30
85°
64°
31
88°
65°
1
84°
61°
2
83°
62°
3
83°
61°
4
82°
60°
5
82°
62°
6
83°
63°
7
83°
63°
8
84°
64°
9
82°
67°
10
83°
67°
11
82°
65°
12
82°
62°
13
88°
66°
14
88°
60°
15
82°
60°
16
82°
62°
17
87°
64°
18
87°
62°
19
83°
61°
20
82°
59°
21
81°
60°
22
83°
63°
23
82°
64°
24
80°
61°
25
81°
65°
26
83°
65°
27
86°
64°
28
87°
64°
29
87°
62°
30
86°
57°
31
80°
58°
1
81°
60°
2
85°
63°
3
85°
63°
4
84°
61°
5
81°
62°
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 80° to 88°, with overnight lows between 57° and 67°. The average high for August is 84° with an average low of 62°. 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.