S
M
T
W
T
F
S
27
86°
51°
28
85°
53°
29
87°
51°
30
87°
53°
1
89°
52°
2
77°
46°
3
81°
51°
4
81°
53°
5
73°
49°
6
74°
51°
7
79°
50°
8
80°
52°
9
79°
52°
10
78°
50°
11
74°
47°
12
75°
47°
13
72°
46°
14
72°
45°
15
71°
44°
16
73°
49°
17
70°
51°
18
71°
52°
19
71°
51°
20
70°
49°
21
69°
48°
22
68°
44°
23
68°
46°
24
72°
47°
25
73°
49°
26
74°
49°
27
70°
48°
28
68°
47°
29
74°
49°
30
74°
50°
31
75°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sonoma Raceway
Sonoma Raceway's October 2026 forecast shows daily high temperatures ranging from 68° to 89°, with overnight lows between 44° and 53°. The average high for October is 75° with an average low of 49°. 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 Sonoma Raceway. See also: November | December | January.