S
M
T
W
T
F
S
28
92°
72°
29
94°
73°
30
93°
72°
1
95°
72°
2
94°
71°
3
90°
70°
4
86°
69°
5
84°
68°
6
87°
65°
7
86°
68°
8
89°
67°
9
85°
65°
10
92°
71°
11
92°
70°
12
89°
70°
13
91°
69°
14
91°
70°
15
90°
70°
16
91°
71°
17
92°
71°
18
92°
72°
19
91°
71°
20
91°
71°
21
92°
72°
22
93°
71°
23
92°
72°
24
90°
71°
25
89°
70°
26
92°
72°
27
93°
72°
28
93°
71°
29
92°
72°
30
93°
71°
31
91°
71°
1
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Hillsboro
Hillsboro's July 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 65° and 73°. The average high for July is 91° with an average low of 70°. 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 Hillsboro. See also: August | September | October.