S
M
T
W
T
F
S
29
73°
38°
30
77°
58°
31
80°
57°
1
82°
65°
2
85°
56°
3
85°
61°
4
83°
60°
5
66°
47°
6
70°
42°
7
72°
41°
8
75°
44°
9
76°
47°
10
79°
45°
11
84°
46°
12
86°
48°
13
80°
60°
14
85°
57°
15
85°
53°
16
86°
60°
17
87°
53°
18
83°
48°
19
67°
43°
20
76°
39°
21
81°
44°
22
81°
47°
23
82°
50°
24
81°
54°
25
79°
60°
26
84°
58°
27
84°
59°
28
78°
64°
29
76°
52°
30
68°
48°
1
65°
49°
2
64°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Hillsboro
Hillsboro's April 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 37° and 64°. The average high for April is 70° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Hillsboro. See also: May | June | July.