S
M
T
W
T
F
S
29
66°
28°
30
75°
57°
31
77°
61°
1
68°
50°
2
75°
52°
3
77°
52°
4
73°
50°
5
52°
39°
6
59°
36°
7
48°
36°
8
64°
30°
9
73°
48°
10
72°
54°
11
66°
46°
12
77°
48°
13
77°
68°
14
81°
68°
15
81°
68°
16
77°
64°
17
81°
50°
18
64°
46°
19
59°
32°
20
57°
30°
21
75°
41°
22
77°
57°
23
81°
54°
24
79°
58°
25
78°
50°
26
75°
55°
27
82°
64°
28
75°
53°
29
69°
44°
30
64°
44°
1
62°
42°
2
59°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lowell
Lowell's April 2026 forecast shows daily high temperatures ranging from 59° to 82°, with overnight lows between 40° and 64°. The average high for April is 71° 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 Lowell. See also: May | June | July.