S
M
T
W
T
F
S
26
61°
38°
27
67°
32°
28
62°
34°
29
59°
45°
30
54°
45°
1
63°
43°
2
57°
46°
3
54°
37°
4
73°
53°
5
83°
51°
6
72°
51°
7
65°
41°
8
60°
44°
9
58°
46°
10
72°
54°
11
60°
42°
12
63°
42°
13
62°
49°
14
65°
48°
15
69°
50°
16
66°
47°
17
65°
46°
18
64°
48°
19
69°
47°
20
65°
45°
21
64°
44°
22
65°
44°
23
66°
47°
24
67°
52°
25
70°
52°
26
74°
53°
27
73°
48°
28
68°
46°
29
67°
49°
30
70°
50°
31
76°
55°
1
73°
55°
2
71°
54°
3
72°
54°
4
76°
55°
5
76°
56°
6
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Billerica
Billerica's May 2026 forecast shows daily high temperatures ranging from 58° to 77°, with overnight lows between 41° and 56°. The average high for May is 68° 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 Billerica. See also: June | July | August.
