S
M
T
W
T
F
S
26
88°
70°
27
90°
73°
28
88°
71°
29
88°
68°
30
76°
65°
1
65°
54°
2
76°
49°
3
79°
52°
4
81°
59°
5
82°
69°
6
85°
68°
7
79°
59°
8
78°
64°
9
79°
66°
10
83°
66°
11
86°
66°
12
89°
67°
13
87°
68°
14
84°
65°
15
85°
68°
16
86°
69°
17
85°
69°
18
86°
68°
19
86°
69°
20
85°
69°
21
87°
70°
22
85°
69°
23
83°
69°
24
84°
70°
25
83°
70°
26
83°
69°
27
84°
69°
28
85°
70°
29
85°
70°
30
86°
71°
31
86°
71°
1
87°
70°
2
87°
71°
3
88°
72°
4
89°
72°
5
87°
71°
6
86°
70°
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 65° to 89°, with overnight lows between 49° and 72°. The average high for May is 84° with an average low of 67°. 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.
