S
M
T
W
T
F
S
26
62°
48°
27
70°
42°
28
60°
49°
29
59°
44°
30
57°
39°
1
51°
37°
2
52°
32°
3
61°
35°
4
76°
44°
5
63°
45°
6
56°
44°
7
59°
40°
8
59°
42°
9
73°
50°
10
65°
46°
11
69°
39°
12
73°
40°
13
60°
43°
14
66°
42°
15
67°
54°
16
76°
61°
17
83°
63°
18
87°
66°
19
76°
56°
20
68°
49°
21
68°
51°
22
71°
50°
23
74°
55°
24
77°
57°
25
78°
61°
26
76°
60°
27
78°
66°
28
76°
59°
29
77°
59°
30
75°
56°
31
70°
53°
1
72°
51°
2
71°
51°
3
72°
52°
4
73°
57°
5
80°
62°
6
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Westchester
Westchester's May 2026 forecast shows daily high temperatures ranging from 66° to 87°, with overnight lows between 42° and 66°. The average high for May is 75° 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 Westchester. See also: June | July | August.
