S
M
T
W
T
F
S
26
94°
62°
27
93°
61°
28
92°
63°
29
93°
61°
30
94°
62°
31
94°
62°
1
95°
63°
2
95°
62°
3
94°
63°
4
95°
63°
5
94°
62°
6
94°
62°
7
93°
61°
8
93°
62°
9
94°
63°
10
94°
63°
11
93°
62°
12
93°
61°
13
92°
62°
14
92°
50°
15
88°
53°
16
85°
52°
17
89°
57°
18
89°
58°
19
91°
57°
20
89°
56°
21
88°
57°
22
90°
58°
23
92°
53°
24
89°
58°
25
90°
59°
26
92°
57°
27
91°
56°
28
85°
56°
29
85°
48°
30
82°
53°
31
85°
51°
1
86°
54°
2
87°
56°
3
89°
52°
4
87°
44°
5
77°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in American Falls
American Falls's August 2026 forecast shows daily high temperatures ranging from 77° to 95°, with overnight lows between 44° and 63°. The average high for August is 90° with an average low of 58°. 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 American Falls. See also: September | October | November.
