S
M
T
W
T
F
S
26
65°
40°
27
69°
52°
28
64°
48°
29
59°
37°
30
57°
39°
1
52°
36°
2
54°
41°
3
63°
47°
4
63°
48°
5
64°
44°
6
60°
42°
7
59°
44°
8
60°
43°
9
62°
44°
10
69°
45°
11
63°
48°
12
67°
46°
13
64°
43°
14
63°
43°
15
64°
44°
16
65°
44°
17
66°
47°
18
74°
55°
19
74°
51°
20
71°
48°
21
66°
49°
22
68°
49°
23
73°
55°
24
77°
57°
25
78°
55°
26
71°
51°
27
69°
49°
28
72°
54°
29
77°
57°
30
79°
58°
31
79°
59°
1
80°
59°
2
81°
60°
3
82°
60°
4
81°
58°
5
72°
55°
6
78°
61°
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 52° to 82°, with overnight lows between 36° and 61°. The average high for May is 69° with an average low of 49°. 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.
