S
M
T
W
T
F
S
26
81°
59°
27
90°
63°
28
63°
52°
29
66°
48°
30
68°
46°
1
68°
45°
2
68°
45°
3
84°
43°
4
81°
61°
5
66°
50°
6
64°
46°
7
72°
39°
8
81°
50°
9
82°
50°
10
68°
54°
11
79°
43°
12
81°
48°
13
81°
56°
14
85°
68°
15
87°
69°
16
84°
70°
17
89°
69°
18
81°
64°
19
72°
53°
20
76°
60°
21
77°
57°
22
79°
58°
23
78°
58°
24
80°
62°
25
83°
64°
26
81°
58°
27
83°
63°
28
82°
62°
29
84°
63°
30
80°
61°
31
80°
63°
1
76°
62°
2
77°
64°
3
80°
65°
4
85°
66°
5
85°
66°
6
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Chelsea
Chelsea's May 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 53° and 70°. The average high for May is 81° with an average low of 63°. 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 Chelsea. See also: June | July | August.