S
M
T
W
T
F
S
31
77°
58°
1
83°
59°
2
84°
61°
3
81°
60°
4
85°
60°
5
81°
54°
6
73°
48°
7
72°
53°
8
79°
57°
9
81°
61°
10
88°
63°
11
88°
64°
12
87°
64°
13
79°
52°
14
78°
52°
15
80°
56°
16
84°
57°
17
85°
57°
18
84°
56°
19
84°
56°
20
83°
55°
21
85°
57°
22
85°
57°
23
84°
56°
24
86°
57°
25
86°
57°
26
85°
56°
27
82°
55°
28
86°
57°
29
87°
58°
30
88°
59°
1
88°
59°
2
87°
60°
3
88°
61°
4
88°
60°
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 72° to 88°, with overnight lows between 48° and 64°. The average high for June is 83° with an average low of 57°. 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.
