S
M
T
W
T
F
S
29
89°
63°
30
92°
67°
31
96°
66°
1
96°
70°
2
96°
69°
3
96°
71°
4
95°
67°
5
94°
63°
6
94°
67°
7
94°
68°
8
94°
65°
9
96°
65°
10
98°
70°
11
96°
67°
12
92°
67°
13
95°
67°
14
97°
67°
15
98°
70°
16
100°
72°
17
103°
71°
18
103°
73°
19
89°
70°
20
87°
69°
21
95°
67°
22
101°
72°
23
97°
74°
24
103°
74°
25
86°
71°
26
97°
68°
27
80°
73°
28
83°
72°
29
91°
72°
30
92°
70°
31
94°
70°
1
95°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Santa Rosa
Santa Rosa's January 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Santa Rosa. See also: February | March | April.
