S
M
T
W
T
F
S
26
78°
51°
27
63°
59°
28
63°
54°
29
61°
44°
30
61°
40°
1
55°
45°
2
55°
42°
3
66°
43°
4
74°
54°
5
63°
45°
6
60°
44°
7
64°
39°
8
66°
48°
9
74°
50°
10
70°
53°
11
72°
46°
12
78°
46°
13
69°
50°
14
69°
44°
15
74°
52°
16
75°
65°
17
82°
65°
18
77°
64°
19
82°
63°
20
67°
53°
21
66°
50°
22
67°
54°
23
74°
58°
24
77°
61°
25
80°
54°
26
76°
62°
27
82°
66°
28
85°
62°
29
82°
60°
30
82°
56°
31
79°
58°
1
83°
59°
2
81°
54°
3
81°
56°
4
81°
61°
5
85°
64°
6
84°
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 79° to 85°, with overnight lows between 54° and 64°. The average high for May is 82° with an average low of 59°. 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.
