S
M
T
W
T
F
S
27
83°
52°
28
82°
52°
29
80°
49°
30
82°
52°
1
78°
48°
2
73°
44°
3
74°
45°
4
74°
43°
5
73°
44°
6
73°
46°
7
74°
45°
8
75°
44°
9
74°
47°
10
77°
47°
11
74°
44°
12
72°
41°
13
71°
42°
14
71°
43°
15
72°
43°
16
72°
47°
17
75°
47°
18
78°
48°
19
78°
49°
20
77°
48°
21
76°
48°
22
77°
49°
23
77°
49°
24
78°
47°
25
76°
49°
26
74°
48°
27
69°
49°
28
73°
48°
29
69°
47°
30
68°
42°
31
69°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in American Canyon
American Canyon's October 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 41° and 52°. The average high for October is 75° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in American Canyon. See also: November | December | January.