S
M
T
W
T
F
S
31
83°
64°
1
76°
64°
2
79°
57°
3
80°
52°
4
83°
54°
5
85°
56°
6
88°
60°
7
77°
63°
8
80°
70°
9
89°
66°
10
90°
67°
11
90°
68°
12
86°
69°
13
92°
66°
14
84°
65°
15
78°
60°
16
82°
63°
17
86°
72°
18
80°
69°
19
81°
60°
20
84°
64°
21
82°
68°
22
79°
64°
23
82°
63°
24
83°
64°
25
83°
64°
26
83°
64°
27
84°
66°
28
87°
65°
29
86°
66°
30
82°
63°
1
83°
62°
2
84°
67°
3
85°
68°
4
86°
68°
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 79° to 87°, with overnight lows between 60° and 72°. The average high for June is 83° 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 June weather will actually feel in Hillsboro. See also: July | August | September.