S
M
T
W
T
F
S
31
76°
62°
1
78°
62°
2
88°
63°
3
77°
58°
4
80°
54°
5
76°
56°
6
83°
62°
7
89°
69°
8
81°
66°
9
81°
65°
10
84°
67°
11
85°
65°
12
78°
58°
13
77°
60°
14
76°
58°
15
75°
55°
16
77°
58°
17
79°
61°
18
75°
59°
19
74°
63°
20
81°
55°
21
71°
54°
22
73°
63°
23
80°
65°
24
80°
60°
25
73°
55°
26
73°
57°
27
74°
64°
28
74°
64°
29
76°
65°
30
77°
64°
1
76°
65°
2
78°
66°
3
80°
67°
4
79°
66°
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 71° to 89°, with overnight lows between 54° and 69°. The average high for June is 78° with an average low of 61°. 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.