S
M
T
W
T
F
S
26
68°
50°
27
77°
43°
28
76°
59°
29
66°
46°
30
60°
40°
1
56°
37°
2
56°
34°
3
63°
30°
4
76°
44°
5
69°
50°
6
60°
41°
7
61°
36°
8
71°
38°
9
75°
52°
10
71°
51°
11
72°
39°
12
76°
39°
13
71°
47°
14
66°
40°
15
67°
38°
16
76°
53°
17
86°
62°
18
89°
67°
19
88°
65°
20
72°
52°
21
69°
55°
22
70°
65°
23
75°
64°
24
80°
64°
25
79°
62°
26
78°
61°
27
78°
62°
28
79°
60°
29
80°
58°
30
79°
59°
31
81°
57°
1
81°
61°
2
82°
61°
3
80°
59°
4
75°
56°
5
75°
55°
6
78°
62°
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 69° to 89°, with overnight lows between 52° and 67°. The average high for May is 78° 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.
