S
M
T
W
T
F
S
31
84°
57°
1
83°
55°
2
84°
56°
3
79°
57°
4
77°
58°
5
77°
60°
6
79°
62°
7
80°
60°
8
86°
58°
9
85°
62°
10
87°
63°
11
86°
63°
12
86°
62°
13
85°
63°
14
83°
64°
15
80°
64°
16
84°
63°
17
83°
61°
18
82°
61°
19
86°
64°
20
87°
65°
21
88°
62°
22
87°
61°
23
82°
59°
24
82°
59°
25
83°
60°
26
85°
60°
27
84°
62°
28
87°
65°
29
88°
64°
30
83°
64°
1
84°
66°
2
83°
63°
3
82°
65°
4
85°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Hillsboro
Hillsboro's June 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 55° and 66°. The average high for June is 84° 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 June weather will actually feel in Hillsboro. See also: July | August | September.