S
M
T
W
T
F
S
26
60°
36°
27
65°
30°
28
59°
32°
29
56°
45°
30
55°
46°
1
65°
40°
2
59°
41°
3
56°
31°
4
72°
42°
5
79°
48°
6
71°
57°
7
66°
48°
8
63°
34°
9
60°
32°
10
74°
51°
11
63°
36°
12
65°
35°
13
67°
40°
14
63°
45°
15
57°
40°
16
79°
38°
17
89°
51°
18
86°
51°
19
95°
63°
20
91°
62°
21
71°
46°
22
63°
43°
23
65°
44°
24
55°
50°
25
76°
53°
26
83°
47°
27
85°
58°
28
73°
50°
29
73°
45°
30
57°
35°
31
70°
46°
1
60°
41°
2
72°
50°
3
76°
53°
4
83°
59°
5
85°
64°
6
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Newton
Newton's May 2026 forecast shows daily high temperatures ranging from 60° to 85°, with overnight lows between 41° and 64°. The average high for May is 75° with an average low of 53°. 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.
