S
M
T
W
T
F
S
31
64°
46°
1
69°
48°
2
67°
46°
3
65°
47°
4
63°
44°
5
63°
42°
6
64°
41°
7
63°
42°
8
65°
44°
9
70°
46°
10
75°
50°
11
76°
52°
12
76°
52°
13
75°
53°
14
76°
53°
15
68°
49°
16
66°
43°
17
67°
45°
18
75°
50°
19
77°
54°
20
78°
50°
21
68°
45°
22
78°
52°
23
80°
54°
24
79°
55°
25
80°
54°
26
79°
55°
27
84°
55°
28
84°
56°
29
82°
46°
30
74°
48°
1
75°
46°
2
75°
54°
3
76°
52°
4
74°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Grass Valley
Grass Valley's June 2026 forecast shows daily high temperatures ranging from 63° to 84°, with overnight lows between 41° and 56°. The average high for June is 73° 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 June weather will actually feel in Grass Valley. See also: July | August | September.
