S
M
T
W
T
F
S
31
81°
56°
1
82°
53°
2
85°
51°
3
85°
51°
4
88°
69°
5
83°
66°
6
84°
68°
7
87°
68°
8
83°
68°
9
84°
68°
10
91°
66°
11
92°
69°
12
86°
67°
13
85°
67°
14
85°
64°
15
82°
61°
16
81°
62°
17
83°
61°
18
81°
64°
19
82°
65°
20
81°
64°
21
77°
58°
22
76°
58°
23
78°
67°
24
86°
68°
25
86°
66°
26
83°
60°
27
78°
64°
28
79°
64°
29
81°
66°
30
82°
65°
1
82°
66°
2
83°
67°
3
85°
67°
4
86°
68°
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 76° to 92°, with overnight lows between 58° and 69°. The average high for June is 83° with an average low of 65°. 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.
