S
M
T
W
T
F
S
27
78°
54°
28
80°
47°
29
97°
48°
30
93°
52°
1
92°
47°
2
95°
50°
3
101°
54°
4
93°
58°
5
95°
58°
6
99°
54°
7
93°
51°
8
92°
54°
9
81°
51°
10
73°
45°
11
74°
47°
12
77°
49°
13
81°
49°
14
82°
50°
15
82°
49°
16
84°
48°
17
87°
51°
18
86°
52°
19
87°
51°
20
88°
52°
21
79°
47°
22
80°
51°
23
79°
50°
24
77°
49°
25
77°
49°
26
78°
48°
27
78°
49°
28
77°
49°
29
77°
48°
30
76°
50°
31
74°
49°
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 73° to 92°, with overnight lows between 45° and 54°. The average high for October is 80° 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 Santa Rosa. See also: November | December | January.
