S
M
T
W
T
F
S
26
61°
36°
27
71°
35°
28
67°
36°
29
64°
40°
30
56°
47°
1
64°
38°
2
58°
47°
3
57°
36°
4
70°
33°
5
75°
43°
6
68°
48°
7
66°
43°
8
63°
45°
9
59°
47°
10
74°
52°
11
64°
44°
12
62°
44°
13
61°
50°
14
69°
51°
15
70°
53°
16
69°
51°
17
67°
50°
18
66°
51°
19
70°
50°
20
65°
46°
21
66°
47°
22
66°
47°
23
67°
48°
24
68°
50°
25
71°
54°
26
75°
55°
27
70°
53°
28
71°
50°
29
69°
49°
30
71°
53°
31
77°
57°
1
76°
57°
2
74°
54°
3
75°
55°
4
78°
58°
5
79°
59°
6
78°
58°
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 59° to 79°, with overnight lows between 43° and 59°. The average high for May is 70° with an average low of 51°. 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.
