S
M
T
W
T
F
S
28
79°
55°
29
78°
54°
30
79°
57°
1
78°
52°
2
82°
54°
3
89°
60°
4
93°
64°
5
89°
51°
6
92°
51°
7
100°
53°
8
92°
67°
9
92°
62°
10
95°
65°
11
90°
67°
12
83°
60°
13
95°
52°
14
96°
66°
15
102°
67°
16
98°
66°
17
91°
61°
18
94°
61°
19
93°
59°
20
83°
62°
21
98°
56°
22
99°
65°
23
96°
72°
24
100°
70°
25
95°
60°
26
92°
61°
27
93°
64°
28
93°
62°
29
90°
59°
30
94°
60°
31
97°
62°
1
96°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Hermiston
Hermiston's July 2026 forecast shows daily high temperatures ranging from 90° to 100°, with overnight lows between 59° and 70°. The average high for July is 94° with an average low of 62°. 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 Hermiston. See also: August | September | October.
