S
M
T
W
T
F
S
31
67°
53°
1
75°
52°
2
75°
54°
3
73°
54°
4
74°
55°
5
77°
53°
6
76°
49°
7
72°
49°
8
74°
50°
9
71°
50°
10
74°
56°
11
72°
49°
12
75°
57°
13
79°
58°
14
80°
59°
15
81°
58°
16
81°
59°
17
80°
59°
18
81°
55°
19
81°
58°
20
80°
60°
21
76°
61°
22
82°
60°
23
82°
61°
24
83°
62°
25
84°
56°
26
83°
53°
27
78°
52°
28
76°
52°
29
77°
55°
30
77°
60°
1
78°
62°
2
80°
58°
3
79°
57°
4
81°
55°
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 67° to 84°, with overnight lows between 49° and 62°. The average high for June is 78° 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 Hillsboro. See also: July | August | September.