S
M
T
W
T
F
S
31
68°
39°
1
79°
41°
2
88°
48°
3
72°
57°
4
70°
52°
5
63°
50°
6
61°
46°
7
66°
45°
8
63°
46°
9
64°
50°
10
68°
48°
11
73°
43°
12
75°
46°
13
84°
48°
14
90°
54°
15
93°
57°
16
80°
51°
17
77°
51°
18
80°
56°
19
86°
50°
20
77°
51°
21
82°
55°
22
88°
58°
23
88°
57°
24
83°
55°
25
79°
52°
26
79°
54°
27
81°
56°
28
84°
56°
29
75°
54°
30
72°
54°
1
69°
52°
2
74°
56°
3
77°
57°
4
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sumner
Sumner's June 2026 forecast shows daily high temperatures ranging from 69° to 88°, with overnight lows between 50° and 58°. The average high for June is 79° with an average low of 54°. 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 Sumner. See also: July | August | September.