S
M
T
W
T
F
S
31
64°
44°
1
64°
42°
2
66°
44°
3
67°
44°
4
74°
50°
5
76°
52°
6
76°
52°
7
77°
53°
8
75°
52°
9
69°
50°
10
77°
52°
11
74°
50°
12
73°
51°
13
69°
48°
14
67°
47°
15
66°
43°
16
67°
46°
17
71°
44°
18
68°
46°
19
74°
48°
20
78°
53°
21
79°
55°
22
72°
44°
23
71°
46°
24
78°
49°
25
81°
50°
26
83°
45°
27
80°
48°
28
79°
49°
29
84°
58°
30
85°
53°
1
79°
46°
2
75°
47°
3
74°
45°
4
75°
50°
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 64° to 85°, with overnight lows between 42° and 58°. The average high for June is 74° with an average low of 48°. 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.
