S
M
T
W
T
F
S
26
66°
55°
27
66°
58°
28
69°
53°
29
70°
54°
30
70°
60°
1
70°
58°
2
68°
58°
3
67°
59°
4
68°
58°
5
66°
57°
6
68°
55°
7
68°
58°
8
69°
59°
9
69°
57°
10
70°
59°
11
67°
57°
12
67°
56°
13
70°
60°
14
70°
58°
15
68°
60°
16
70°
61°
17
71°
58°
18
71°
58°
19
75°
57°
20
77°
60°
21
73°
59°
22
68°
60°
23
69°
60°
24
68°
60°
25
69°
58°
26
68°
58°
27
66°
58°
28
68°
57°
29
69°
59°
30
71°
59°
31
72°
60°
1
72°
59°
2
76°
59°
3
75°
62°
4
74°
64°
5
73°
63°
6
73°
61°
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 68° to 76°, with overnight lows between 57° and 64°. The average high for May is 72° with an average low of 60°. 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.
