S
M
T
W
T
F
S
26
65°
45°
27
75°
40°
28
74°
53°
29
63°
49°
30
52°
41°
1
52°
37°
2
45°
36°
3
59°
35°
4
72°
48°
5
74°
60°
6
62°
47°
7
61°
40°
8
61°
42°
9
68°
50°
10
64°
47°
11
63°
42°
12
70°
41°
13
69°
49°
14
55°
44°
15
69°
42°
16
73°
49°
17
83°
59°
18
89°
64°
19
89°
67°
20
74°
51°
21
65°
49°
22
66°
54°
23
71°
54°
24
74°
57°
25
77°
64°
26
N/A
27
78°
62°
28
79°
50°
29
80°
51°
30
80°
49°
31
76°
48°
1
77°
49°
2
74°
50°
3
76°
54°
4
76°
54°
5
80°
58°
6
81°
59°
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 74° to 81°, with overnight lows between 48° and 62°. The average high for May is 78° 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.
