S
M
T
W
T
F
S
26
59°
43°
27
69°
42°
28
64°
44°
29
61°
49°
30
62°
48°
1
65°
44°
2
63°
50°
3
61°
46°
4
74°
47°
5
85°
58°
6
72°
56°
7
66°
50°
8
65°
46°
9
69°
52°
10
77°
50°
11
62°
51°
12
68°
44°
13
74°
55°
14
66°
50°
15
66°
50°
16
81°
60°
17
86°
63°
18
75°
61°
19
87°
69°
20
80°
58°
21
71°
57°
22
71°
57°
23
72°
57°
24
70°
58°
25
69°
56°
26
73°
55°
27
69°
54°
28
70°
53°
29
69°
55°
30
70°
61°
31
78°
58°
1
71°
56°
2
72°
55°
3
71°
55°
4
72°
56°
5
73°
61°
6
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Westfield
Westfield's May 2026 forecast shows daily high temperatures ranging from 66° to 87°, with overnight lows between 50° and 69°. The average high for May is 73° with an average low of 57°. 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 Westfield. See also: June | July | August.
