S
M
T
W
T
F
S
27
76°
54°
28
76°
54°
29
78°
49°
30
80°
51°
1
83°
52°
2
83°
52°
3
82°
51°
4
83°
52°
5
83°
52°
6
82°
51°
7
81°
50°
8
82°
51°
9
82°
50°
10
80°
48°
11
74°
46°
12
71°
46°
13
69°
43°
14
67°
42°
15
70°
45°
16
74°
46°
17
73°
47°
18
68°
43°
19
66°
44°
20
68°
44°
21
68°
45°
22
69°
45°
23
69°
34°
24
69°
35°
25
74°
29°
26
66°
33°
27
68°
39°
28
76°
38°
29
73°
36°
30
71°
27°
31
64°
33°
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 64° to 83°, with overnight lows between 27° and 54°. The average high for October is 74° 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 Santa Rosa. See also: November | December | January.
