S
M
T
W
T
F
S
26
75°
55°
27
82°
64°
28
78°
53°
29
69°
44°
30
62°
40°
1
62°
39°
2
59°
40°
3
66°
45°
4
69°
52°
5
72°
53°
6
71°
53°
7
70°
50°
8
65°
44°
9
66°
46°
10
66°
46°
11
67°
55°
12
70°
57°
13
77°
54°
14
68°
51°
15
67°
48°
16
67°
47°
17
68°
48°
18
67°
54°
19
67°
51°
20
68°
50°
21
69°
49°
22
70°
50°
23
72°
57°
24
75°
56°
25
72°
52°
26
71°
52°
27
71°
55°
28
73°
60°
29
73°
61°
30
74°
61°
31
73°
59°
1
73°
61°
2
74°
58°
3
75°
57°
4
78°
62°
5
84°
61°
6
83°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lowell
Lowell's May 2026 forecast shows daily high temperatures ranging from 59° to 84°, with overnight lows between 39° and 64°. The average high for May is 71° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Lowell. See also: June | July | August.
