S
M
T
W
T
F
S
26
85°
61°
27
84°
62°
28
82°
58°
29
91°
66°
30
84°
68°
1
69°
58°
2
72°
54°
3
75°
45°
4
82°
45°
5
84°
52°
6
89°
62°
7
77°
71°
8
75°
64°
9
69°
62°
10
84°
64°
11
88°
64°
12
72°
60°
13
80°
59°
14
82°
57°
15
83°
49°
16
90°
55°
17
90°
70°
18
90°
67°
19
90°
66°
20
91°
71°
21
90°
68°
22
90°
68°
23
89°
71°
24
88°
70°
25
80°
70°
26
83°
70°
27
84°
69°
28
85°
68°
29
85°
69°
30
82°
68°
31
78°
65°
1
79°
63°
2
83°
64°
3
82°
65°
4
81°
66°
5
82°
67°
6
85°
67°
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 78° to 88°, with overnight lows between 63° and 70°. The average high for May is 83° with an average low of 67°. 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.
