S
M
T
W
T
F
S
26
69°
53°
27
65°
45°
28
55°
41°
29
52°
39°
30
48°
39°
1
52°
37°
2
64°
37°
3
70°
52°
4
66°
45°
5
52°
37°
6
46°
33°
7
57°
35°
8
71°
43°
9
60°
47°
10
60°
41°
11
67°
38°
12
73°
54°
13
69°
46°
14
77°
47°
15
87°
56°
16
82°
59°
17
69°
53°
18
70°
57°
19
66°
45°
20
60°
40°
21
60°
49°
22
65°
50°
23
70°
55°
24
83°
50°
25
86°
61°
26
89°
67°
27
90°
65°
28
82°
59°
29
82°
61°
30
78°
55°
31
77°
59°
1
82°
60°
2
82°
60°
3
82°
60°
4
78°
60°
5
77°
59°
6
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Chester
Chester's May 2026 forecast shows daily high temperatures ranging from 77° to 82°, with overnight lows between 55° and 61°. The average high for May is 80° with an average low of 59°. 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 Chester. See also: June | July | August.
