S
M
T
W
T
F
S
26
94°
62°
27
95°
63°
28
96°
62°
29
96°
64°
30
94°
63°
31
94°
63°
1
95°
62°
2
95°
63°
3
94°
64°
4
94°
63°
5
93°
62°
6
92°
62°
7
93°
61°
8
94°
62°
9
94°
63°
10
93°
52°
11
84°
50°
12
82°
51°
13
84°
54°
14
86°
52°
15
91°
53°
16
88°
54°
17
88°
56°
18
87°
55°
19
90°
57°
20
92°
57°
21
90°
56°
22
89°
57°
23
90°
57°
24
89°
56°
25
89°
55°
26
87°
55°
27
88°
56°
28
87°
56°
29
86°
55°
30
83°
55°
31
80°
51°
1
78°
52°
2
82°
53°
3
81°
51°
4
76°
50°
5
77°
52°
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 76° to 96°, with overnight lows between 50° and 64°. The average high for August is 89° with an average low of 57°. 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.
