S
M
T
W
T
F
S
28
79°
68°
29
87°
65°
30
91°
72°
1
92°
73°
2
92°
74°
3
93°
70°
4
92°
67°
5
N/A
6
83°
70°
7
83°
66°
8
84°
67°
9
89°
70°
10
81°
66°
11
81°
62°
12
82°
62°
13
81°
63°
14
85°
64°
15
82°
64°
16
84°
67°
17
83°
67°
18
83°
66°
19
84°
63°
20
79°
60°
21
77°
60°
22
78°
59°
23
78°
60°
24
79°
64°
25
81°
65°
26
79°
65°
27
80°
66°
28
84°
66°
29
84°
65°
30
81°
66°
31
80°
66°
1
79°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Hillsboro
Hillsboro's July 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 59° and 70°. The average high for July is 82° 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 July weather will actually feel in Hillsboro. See also: August | September | October.