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
56°
41°
3
58°
41°
4
67°
48°
5
79°
57°
6
67°
51°
7
62°
40°
8
60°
36°
9
61°
41°
10
60°
42°
11
63°
44°
12
61°
45°
13
63°
48°
14
65°
45°
15
67°
47°
16
72°
51°
17
71°
50°
18
73°
51°
19
73°
51°
20
68°
50°
21
69°
51°
22
69°
52°
23
67°
49°
24
64°
47°
25
66°
47°
26
67°
53°
27
67°
50°
28
68°
48°
29
67°
47°
30
68°
50°
31
69°
54°
1
70°
52°
2
71°
49°
3
70°
55°
4
74°
55°
5
70°
54°
6
70°
56°
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 56° to 79°, with overnight lows between 36° and 57°. The average high for May is 67° 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.
