S
M
T
W
T
F
S
31
88°
67°
1
97°
73°
2
96°
73°
3
93°
72°
4
92°
72°
5
91°
74°
6
94°
73°
7
92°
74°
8
92°
73°
9
90°
71°
10
89°
72°
11
88°
71°
12
86°
71°
13
89°
70°
14
89°
73°
15
89°
74°
16
88°
74°
17
88°
73°
18
89°
74°
19
88°
74°
20
88°
72°
21
89°
74°
22
89°
74°
23
90°
73°
24
89°
74°
25
90°
74°
26
91°
73°
27
90°
73°
28
89°
74°
29
90°
74°
30
91°
73°
1
90°
74°
2
90°
74°
3
91°
73°
4
91°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Santa Rosa
Santa Rosa's June 2026 forecast shows daily high temperatures ranging from 86° to 97°, with overnight lows between 70° and 74°. The average high for June is 90° with an average low of 73°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Santa Rosa. See also: July | August | September.