S
M
T
W
T
F
S
26
82°
51°
27
81°
51°
28
81°
51°
29
80°
57°
30
78°
57°
31
81°
53°
1
82°
55°
2
91°
54°
3
87°
54°
4
80°
55°
5
79°
55°
6
82°
56°
7
85°
55°
8
87°
56°
9
82°
55°
10
80°
55°
11
79°
55°
12
77°
56°
13
81°
56°
14
80°
55°
15
76°
55°
16
76°
56°
17
77°
54°
18
77°
54°
19
76°
53°
20
76°
53°
21
81°
55°
22
80°
54°
23
78°
56°
24
81°
56°
25
82°
55°
26
82°
57°
27
81°
57°
28
82°
56°
29
81°
57°
30
80°
56°
31
81°
56°
1
80°
53°
2
81°
54°
3
83°
54°
4
78°
55°
5
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in American Canyon
American Canyon's August 2026 forecast shows daily high temperatures ranging from 76° to 91°, with overnight lows between 53° and 57°. The average high for August is 81° with an average low of 55°. 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 Canyon. See also: September | October | November.
