S
M
T
W
T
F
S
26
68°
56°
27
72°
51°
28
61°
42°
29
63°
39°
30
65°
43°
1
69°
39°
2
69°
43°
3
86°
47°
4
85°
62°
5
66°
45°
6
59°
44°
7
77°
43°
8
76°
55°
9
88°
52°
10
72°
54°
11
81°
48°
12
90°
55°
13
81°
60°
14
90°
57°
15
91°
65°
16
95°
62°
17
91°
71°
18
92°
53°
19
62°
48°
20
64°
49°
21
68°
55°
22
77°
60°
23
74°
58°
24
N/A
25
88°
61°
26
84°
64°
27
80°
63°
28
73°
64°
29
82°
64°
30
84°
62°
31
79°
58°
1
77°
58°
2
79°
57°
3
81°
61°
4
81°
63°
5
84°
63°
6
86°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Newton
Newton's May 2026 forecast shows daily high temperatures ranging from 73° to 88°, with overnight lows between 57° and 64°. The average high for May is 81° with an average low of 62°. 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 Newton. See also: June | July | August.