S
M
T
W
T
F
S
27
61°
44°
28
62°
48°
29
60°
47°
30
59°
46°
1
61°
44°
2
64°
50°
3
67°
49°
4
66°
47°
5
66°
45°
6
62°
39°
7
56°
40°
8
55°
39°
9
54°
39°
10
55°
44°
11
Hist. Avg.
60°
45°
12
Hist. Avg.
59°
45°
13
Hist. Avg.
59°
45°
14
Hist. Avg.
58°
44°
15
Hist. Avg.
58°
44°
16
Hist. Avg.
58°
44°
17
Hist. Avg.
57°
43°
18
Hist. Avg.
57°
43°
19
Hist. Avg.
56°
43°
20
Hist. Avg.
56°
43°
21
Hist. Avg.
55°
42°
22
Hist. Avg.
55°
42°
23
Hist. Avg.
54°
42°
24
Hist. Avg.
54°
41°
25
Hist. Avg.
53°
41°
26
Hist. Avg.
53°
41°
27
Hist. Avg.
52°
41°
28
Hist. Avg.
52°
40°
29
Hist. Avg.
51°
40°
30
Hist. Avg.
51°
40°
31
Hist. Avg.
50°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Diablo
Diablo's October 2026 forecast shows daily high temperatures ranging from 54° to 67°, with overnight lows between 39° and 50°. The average high for October is 61° with an average low of 44°. 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 Diablo. See also: November | December | January.