S
M
T
W
T
F
S
1
57°
31°
2
36°
29°
3
45°
32°
4
61°
36°
5
74°
40°
6
76°
44°
7
79°
43°
8
63°
46°
9
70°
37°
10
76°
37°
11
79°
52°
12
58°
27°
13
60°
19°
14
59°
38°
15
60°
35°
16
63°
21°
17
30°
16°
18
40°
13°
19
59°
33°
20
65°
28°
21
71°
46°
22
82°
37°
23
69°
30°
24
53°
21°
25
64°
28°
26
73°
40°
27
65°
36°
28
47°
25°
29
62°
21°
30
65°
35°
31
76°
47°
1
73°
51°
2
79°
46°
3
78°
48°
4
80°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Hillsboro
Hillsboro's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Hillsboro. See also: April | May | June.
