S
M
T
W
T
F
S
28
82°
53°
29
84°
55°
30
85°
55°
1
86°
57°
2
86°
53°
3
84°
54°
4
85°
55°
5
86°
59°
6
87°
56°
7
86°
54°
8
84°
53°
9
82°
52°
10
82°
54°
11
83°
59°
12
85°
60°
13
90°
59°
14
91°
60°
15
92°
62°
16
92°
61°
17
91°
56°
18
88°
55°
19
87°
56°
20
88°
57°
21
87°
56°
22
87°
64°
23
91°
65°
24
85°
57°
25
84°
60°
26
87°
61°
27
93°
60°
28
93°
61°
29
92°
62°
30
93°
64°
31
93°
64°
1
95°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Grass Valley
Grass Valley's July 2026 forecast shows daily high temperatures ranging from 82° to 95°, with overnight lows between 52° and 65°. The average high for July is 88° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Grass Valley. See also: August | September | October.
