S
M
T
W
T
F
S
31
84°
57°
1
83°
57°
2
80°
57°
3
83°
56°
4
83°
59°
5
82°
59°
6
78°
58°
7
79°
57°
8
78°
55°
9
84°
59°
10
87°
60°
11
85°
60°
12
85°
61°
13
84°
60°
14
83°
57°
15
86°
61°
16
86°
61°
17
87°
62°
18
87°
62°
19
86°
61°
20
87°
62°
21
87°
62°
22
88°
61°
23
88°
62°
24
87°
62°
25
88°
61°
26
87°
60°
27
88°
61°
28
86°
59°
29
85°
59°
30
87°
60°
1
87°
61°
2
89°
64°
3
89°
64°
4
88°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Walnut
Walnut's June 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 55° and 64°. The average high for June is 85° with an average low of 60°. 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 Walnut. See also: July | August | September.
