S
M
T
W
T
F
S
26
56°
46°
27
68°
38°
28
69°
41°
29
69°
48°
30
74°
51°
1
68°
37°
2
60°
47°
3
65°
41°
4
79°
44°
5
84°
54°
6
73°
62°
7
N/A
8
73°
48°
9
76°
51°
10
81°
57°
11
64°
47°
12
67°
46°
13
65°
50°
14
68°
49°
15
71°
50°
16
80°
57°
17
76°
56°
18
80°
60°
19
79°
61°
20
78°
56°
21
75°
55°
22
73°
54°
23
73°
56°
24
74°
55°
25
75°
55°
26
76°
59°
27
77°
58°
28
77°
58°
29
80°
59°
30
79°
62°
31
80°
62°
1
77°
63°
2
81°
62°
3
81°
63°
4
82°
64°
5
82°
63°
6
83°
64°
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 64° to 83°, with overnight lows between 46° and 64°. The average high for May is 76° with an average low of 57°. 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.