S
M
T
W
T
F
S
31
76°
42°
1
83°
49°
2
88°
52°
3
84°
57°
4
83°
53°
5
80°
51°
6
74°
46°
7
72°
46°
8
76°
53°
9
85°
56°
10
88°
55°
11
84°
54°
12
86°
57°
13
88°
58°
14
81°
55°
15
73°
53°
16
76°
55°
17
85°
59°
18
88°
59°
19
85°
56°
20
85°
59°
21
87°
59°
22
89°
61°
23
90°
60°
24
87°
57°
25
84°
59°
26
89°
60°
27
84°
51°
28
78°
53°
29
83°
57°
30
90°
61°
1
91°
61°
2
91°
60°
3
93°
62°
4
94°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Hermiston
Hermiston's June 2026 forecast shows daily high temperatures ranging from 72° to 94°, with overnight lows between 46° and 64°. The average high for June is 85° with an average low of 56°. 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 Hermiston. See also: July | August | September.
