S
M
T
W
T
F
S
26
66°
28°
27
68°
30°
28
68°
32°
29
51°
36°
30
55°
41°
1
51°
33°
2
52°
41°
3
43°
34°
4
56°
41°
5
69°
51°
6
59°
47°
7
56°
42°
8
54°
36°
9
53°
37°
10
54°
41°
11
56°
39°
12
55°
37°
13
58°
38°
14
56°
39°
15
60°
39°
16
59°
37°
17
59°
36°
18
60°
42°
19
60°
44°
20
67°
43°
21
67°
43°
22
66°
38°
23
60°
41°
24
59°
41°
25
62°
43°
26
63°
40°
27
62°
39°
28
63°
45°
29
61°
46°
30
63°
47°
31
63°
43°
1
64°
40°
2
62°
40°
3
63°
42°
4
63°
41°
5
64°
41°
6
64°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Northampton
Northampton's May 2026 forecast shows daily high temperatures ranging from 43° to 69°, with overnight lows between 33° and 51°. The average high for May is 60° with an average low of 41°. 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 Northampton. See also: June | July | August.
