S
M
T
W
T
F
S
27
86°
80°
28
86°
80°
29
87°
79°
30
86°
80°
1
86°
80°
2
87°
79°
3
86°
80°
4
86°
80°
5
85°
79°
6
87°
80°
7
87°
79°
8
88°
79°
9
87°
78°
10
86°
80°
11
88°
79°
12
87°
77°
13
88°
78°
14
88°
78°
15
87°
77°
16
88°
77°
17
87°
78°
18
87°
78°
19
88°
77°
20
87°
78°
21
87°
78°
22
86°
77°
23
88°
79°
24
88°
79°
25
87°
76°
26
88°
77°
27
87°
78°
28
88°
78°
29
87°
77°
30
87°
78°
31
86°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in San Jose
San Jose's October 2026 forecast shows daily high temperatures ranging from 85° to 88°, with overnight lows between 76° and 80°. The average high for October is 87° with an average low of 78°. 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 San Jose. See also: November | December | January.
