S
M
T
W
T
F
S
26
64°
41°
27
64°
44°
28
64°
47°
29
51°
37°
30
51°
31°
1
46°
31°
2
57°
28°
3
68°
45°
4
76°
43°
5
55°
34°
6
54°
32°
7
55°
29°
8
68°
32°
9
65°
42°
10
60°
33°
11
58°
35°
12
74°
36°
13
61°
39°
14
69°
35°
15
79°
50°
16
81°
58°
17
67°
50°
18
80°
61°
19
72°
51°
20
60°
44°
21
57°
43°
22
62°
45°
23
75°
52°
24
76°
52°
25
83°
55°
26
N/A
27
84°
51°
28
73°
45°
29
82°
54°
30
71°
48°
31
75°
49°
1
80°
51°
2
81°
53°
3
80°
52°
4
77°
55°
5
76°
56°
6
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Lowell
Lowell's May 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 45° and 56°. The average high for May is 78° with an average low of 52°. 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.
