S
M
T
W
T
F
S
26
104°
74°
27
99°
80°
28
98°
72°
29
91°
74°
30
99°
69°
31
101°
71°
1
104°
73°
2
103°
71°
3
92°
69°
4
91°
66°
5
93°
58°
6
102°
64°
7
104°
64°
8
102°
70°
9
101°
71°
10
101°
71°
11
98°
69°
12
92°
65°
13
89°
64°
14
91°
64°
15
90°
63°
16
92°
64°
17
91°
65°
18
91°
59°
19
87°
62°
20
85°
61°
21
84°
58°
22
85°
61°
23
88°
63°
24
89°
64°
25
89°
58°
26
91°
59°
27
92°
63°
28
92°
64°
29
91°
63°
30
90°
62°
31
86°
62°
1
87°
61°
2
81°
61°
3
80°
54°
4
80°
56°
5
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in American Fork
American Fork's August 2026 forecast shows daily high temperatures ranging from 80° to 104°, with overnight lows between 54° and 71°. The average high for August is 90° with an average low of 63°. 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 Fork. See also: September | October | November.
