S
M
T
W
T
F
S
31
83°
47°
1
86°
50°
2
85°
49°
3
80°
48°
4
83°
52°
5
83°
51°
6
81°
53°
7
77°
48°
8
78°
48°
9
77°
58°
10
92°
53°
11
96°
58°
12
92°
56°
13
90°
53°
14
88°
56°
15
81°
53°
16
79°
55°
17
79°
57°
18
74°
54°
19
68°
56°
20
71°
54°
21
68°
53°
22
68°
55°
23
69°
54°
24
81°
55°
25
80°
54°
26
79°
55°
27
81°
56°
28
82°
54°
29
83°
54°
30
81°
55°
1
82°
53°
2
81°
54°
3
79°
55°
4
83°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Mill Valley
Mill Valley's June 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 53° and 56°. The average high for June is 77° with an average low of 55°. 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 Mill Valley. See also: July | August | September.
