S
M
T
W
T
F
S
27
76°
54°
28
85°
55°
29
80°
53°
30
79°
53°
1
84°
52°
2
83°
54°
3
82°
52°
4
76°
51°
5
74°
49°
6
81°
50°
7
79°
44°
8
77°
48°
9
81°
49°
10
81°
48°
11
82°
49°
12
81°
49°
13
82°
48°
14
81°
49°
15
79°
45°
16
75°
47°
17
76°
47°
18
77°
46°
19
77°
47°
20
74°
43°
21
73°
45°
22
69°
45°
23
73°
44°
24
76°
45°
25
76°
44°
26
69°
44°
27
75°
40°
28
76°
40°
29
72°
41°
30
70°
35°
31
66°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Santa Rosa
Santa Rosa's October 2026 forecast shows daily high temperatures ranging from 66° to 85°, with overnight lows between 29° and 55°. The average high for October is 77° 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 Rosa. See also: November | December | January.
