S
M
T
W
T
F
S
27
53°
42°
28
56°
37°
29
56°
41°
30
41°
36°
1
40°
34°
2
46°
29°
3
44°
29°
4
43°
38°
5
49°
39°
6
49°
42°
7
51°
39°
8
48°
38°
9
50°
42°
10
49°
40°
11
46°
38°
12
48°
36°
13
47°
36°
14
49°
38°
15
45°
39°
16
47°
35°
17
47°
35°
18
45°
34°
19
45°
34°
20
46°
35°
21
38°
31°
22
39°
30°
23
40°
32°
24
39°
33°
25
41°
32°
26
41°
31°
27
40°
31°
28
40°
30°
29
38°
30°
30
40°
29°
31
39°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mountain View
Mountain View's October 2026 forecast shows daily high temperatures ranging from 38° to 51°, with overnight lows between 29° and 42°. The average high for October is 44° with an average low of 34°. 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 Mountain View. See also: November | December | January.