S
M
T
W
T
F
S
26
66°
41°
27
73°
35°
28
72°
38°
29
69°
45°
30
59°
47°
1
64°
34°
2
58°
45°
3
55°
36°
4
73°
33°
5
83°
46°
6
68°
51°
7
62°
37°
8
59°
32°
9
52°
34°
10
71°
46°
11
63°
46°
12
64°
34°
13
63°
51°
14
61°
52°
15
60°
47°
16
78°
57°
17
82°
55°
18
78°
55°
19
87°
63°
20
80°
50°
21
70°
51°
22
70°
51°
23
71°
49°
24
70°
48°
25
69°
50°
26
71°
49°
27
68°
48°
28
67°
47°
29
69°
50°
30
69°
55°
31
75°
53°
1
70°
51°
2
71°
49°
3
70°
48°
4
70°
48°
5
71°
55°
6
74°
56°
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 60° to 87°, with overnight lows between 47° and 63°. The average high for May is 71° with an average low of 52°. 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.
