S
M
T
W
T
F
S
26
69°
53°
27
70°
46°
28
77°
47°
29
80°
51°
30
86°
52°
1
84°
55°
2
71°
55°
3
74°
55°
4
69°
54°
5
66°
53°
6
75°
55°
7
83°
54°
8
88°
51°
9
88°
57°
10
88°
56°
11
94°
54°
12
86°
57°
13
81°
58°
14
93°
57°
15
90°
62°
16
82°
62°
17
79°
57°
18
85°
61°
19
89°
59°
20
89°
60°
21
92°
54°
22
95°
56°
23
80°
53°
24
86°
53°
25
78°
53°
26
73°
55°
27
73°
51°
28
73°
56°
29
71°
53°
30
84°
55°
31
91°
58°
1
94°
56°
2
91°
56°
3
95°
58°
4
92°
57°
5
89°
56°
6
87°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Newtown
Newtown's May 2026 forecast shows daily high temperatures ranging from 71° to 95°, with overnight lows between 53° and 58°. The average high for May is 87° with an average low of 56°. 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 Newtown. See also: June | July | August.