S
M
T
W
T
F
S
28
72°
55°
29
77°
59°
30
79°
61°
1
81°
64°
2
82°
61°
3
85°
65°
4
88°
65°
5
87°
61°
6
86°
61°
7
85°
61°
8
88°
63°
9
89°
64°
10
88°
63°
11
87°
66°
12
91°
67°
13
92°
69°
14
95°
71°
15
88°
58°
16
84°
59°
17
90°
60°
18
89°
60°
19
89°
62°
20
88°
62°
21
87°
61°
22
86°
60°
23
84°
58°
24
84°
57°
25
85°
57°
26
84°
56°
27
85°
58°
28
87°
61°
29
90°
62°
30
92°
63°
31
92°
63°
1
91°
62°
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 56° and 71°. The average high for July is 88° with an average low of 62°. 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.
