S
M
T
W
T
F
S
26
58°
33°
27
66°
33°
28
68°
40°
29
69°
37°
30
77°
37°
1
81°
38°
2
83°
42°
3
84°
43°
4
83°
43°
5
79°
44°
6
84°
42°
7
82°
48°
8
79°
44°
9
79°
41°
10
88°
43°
11
81°
46°
12
92°
42°
13
66°
47°
14
72°
46°
15
73°
45°
16
59°
40°
17
56°
39°
18
68°
41°
19
76°
38°
20
74°
46°
21
79°
45°
22
82°
43°
23
87°
43°
24
88°
46°
25
89°
50°
26
62°
51°
27
75°
52°
28
83°
55°
29
74°
52°
30
74°
47°
31
78°
45°
1
82°
48°
2
88°
53°
3
87°
51°
4
84°
52°
5
85°
51°
6
79°
52°
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 62° to 89°, with overnight lows between 45° and 55°. The average high for May is 81° 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 May weather will actually feel in Lowell. See also: June | July | August.
