S
M
T
W
T
F
S
26
62°
45°
27
74°
41°
28
76°
54°
29
58°
49°
30
53°
38°
1
49°
36°
2
47°
35°
3
61°
30°
4
73°
48°
5
73°
58°
6
60°
45°
7
60°
37°
8
60°
41°
9
70°
51°
10
64°
44°
11
65°
37°
12
69°
39°
13
71°
47°
14
61°
41°
15
70°
35°
16
72°
48°
17
84°
55°
18
89°
60°
19
89°
66°
20
67°
50°
21
66°
49°
22
62°
49°
23
75°
56°
24
72°
63°
25
77°
57°
26
82°
64°
27
71°
55°
28
75°
48°
29
77°
52°
30
74°
46°
31
71°
45°
1
74°
48°
2
74°
50°
3
76°
52°
4
78°
52°
5
81°
58°
6
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in West Chester
West Chester's May 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 45° and 64°. The average high for May is 76° with an average low of 52°. 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 West Chester. See also: June | July | August.
