S
M
T
W
T
F
S
26
55°
39°
27
56°
41°
28
59°
43°
29
60°
45°
30
59°
44°
1
62°
46°
2
62°
46°
3
61°
45°
4
58°
45°
5
59°
44°
6
60°
46°
7
59°
46°
8
61°
44°
9
61°
44°
10
62°
46°
11
63°
43°
12
61°
43°
13
63°
47°
14
62°
44°
15
62°
47°
16
59°
48°
17
64°
49°
18
65°
49°
19
65°
48°
20
64°
49°
21
63°
49°
22
60°
48°
23
60°
49°
24
61°
48°
25
60°
48°
26
61°
46°
27
61°
46°
28
65°
49°
29
64°
46°
30
63°
44°
31
63°
46°
1
64°
43°
2
65°
47°
3
68°
47°
4
69°
48°
5
69°
47°
6
68°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Northborough
Northborough's May 2026 forecast shows daily high temperatures ranging from 55° to 69°, with overnight lows between 39° and 49°. The average high for May is 62° with an average low of 46°. 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 Northborough. See also: June | July | August.
