S
M
T
W
T
F
S
27
70°
48°
28
69°
49°
29
68°
46°
30
68°
48°
1
73°
49°
2
73°
48°
3
75°
47°
4
73°
44°
5
66°
46°
6
Hist. Avg.
70°
44°
7
Hist. Avg.
69°
43°
8
Hist. Avg.
69°
43°
9
Hist. Avg.
68°
43°
10
Hist. Avg.
68°
43°
11
Hist. Avg.
67°
42°
12
Hist. Avg.
67°
42°
13
Hist. Avg.
66°
42°
14
Hist. Avg.
66°
42°
15
Hist. Avg.
65°
42°
16
Hist. Avg.
65°
42°
17
Hist. Avg.
64°
41°
18
Hist. Avg.
64°
41°
19
Hist. Avg.
63°
41°
20
Hist. Avg.
63°
41°
21
Hist. Avg.
62°
41°
22
Hist. Avg.
62°
41°
23
Hist. Avg.
62°
41°
24
Hist. Avg.
61°
40°
25
Hist. Avg.
61°
40°
26
Hist. Avg.
60°
40°
27
Hist. Avg.
60°
40°
28
Hist. Avg.
60°
40°
29
Hist. Avg.
59°
40°
30
Hist. Avg.
59°
40°
31
Hist. Avg.
58°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Santa Clara
Santa Clara's October 2026 forecast shows daily high temperatures ranging from 66° to 75°, with overnight lows between 44° and 49°. The average high for October is 71° with an average low of 47°. 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 Santa Clara. See also: November | December | January.