S
M
T
W
T
F
S
28
88°
70°
29
90°
71°
30
91°
73°
1
91°
74°
2
93°
73°
3
94°
74°
4
94°
71°
5
93°
70°
6
91°
69°
7
93°
72°
8
91°
71°
9
91°
74°
10
95°
74°
11
94°
72°
12
93°
71°
13
93°
74°
14
95°
74°
15
93°
73°
16
95°
74°
17
94°
73°
18
93°
72°
19
95°
68°
20
90°
71°
21
92°
72°
22
97°
71°
23
Hist. Avg.
91°
72°
24
Hist. Avg.
91°
72°
25
Hist. Avg.
91°
72°
26
Hist. Avg.
91°
72°
27
Hist. Avg.
91°
71°
28
Hist. Avg.
91°
71°
29
Hist. Avg.
91°
71°
30
Hist. Avg.
91°
71°
31
Hist. Avg.
91°
71°
1
Hist. Avg.
91°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Walnut
Walnut's July 2026 forecast shows daily high temperatures ranging from 88° to 97°, with overnight lows between 68° and 74°. The average high for July is 93° with an average low of 72°. 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 Walnut. See also: August | September | October.