S
M
T
W
T
F
S
27
68°
55°
28
72°
52°
29
81°
54°
30
81°
57°
1
83°
58°
2
83°
60°
3
95°
63°
4
94°
61°
5
90°
57°
6
94°
62°
7
95°
62°
8
89°
60°
9
83°
62°
10
87°
62°
11
87°
63°
12
86°
62°
13
84°
61°
14
76°
53°
15
71°
55°
16
79°
58°
17
80°
58°
18
81°
59°
19
81°
58°
20
79°
57°
21
75°
57°
22
71°
56°
23
72°
56°
24
74°
55°
25
75°
56°
26
75°
56°
27
76°
55°
28
75°
54°
29
67°
51°
30
72°
53°
31
75°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Alviso
Alviso's October 2026 forecast shows daily high temperatures ranging from 67° to 95°, with overnight lows between 51° and 63°. The average high for October is 81° 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 October weather will actually feel in Alviso. See also: November | December | January.
