S
M
T
W
T
F
S
26
58°
38°
27
44°
38°
28
42°
37°
29
41°
39°
30
42°
39°
1
49°
43°
2
53°
41°
3
45°
37°
4
58°
39°
5
52°
44°
6
55°
47°
7
56°
46°
8
56°
45°
9
53°
41°
10
52°
46°
11
51°
46°
12
48°
43°
13
57°
40°
14
51°
44°
15
60°
47°
16
N/A
17
77°
46°
18
70°
45°
19
74°
56°
20
78°
54°
21
65°
41°
22
60°
41°
23
61°
42°
24
62°
43°
25
62°
46°
26
63°
47°
27
61°
46°
28
66°
46°
29
69°
47°
30
68°
45°
31
67°
47°
1
65°
44°
2
65°
43°
3
66°
43°
4
65°
49°
5
65°
49°
6
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Chester
Chester's May 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 41° and 56°. The average high for May is 67° with an average low of 46°. 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.