S
M
T
W
T
F
S
26
46°
37°
27
45°
36°
28
55°
37°
29
48°
32°
30
48°
32°
1
55°
28°
2
64°
27°
3
64°
48°
4
53°
30°
5
43°
26°
6
43°
25°
7
51°
27°
8
58°
29°
9
58°
34°
10
61°
31°
11
63°
36°
12
65°
40°
13
64°
39°
14
64°
37°
15
62°
38°
16
66°
37°
17
60°
40°
18
66°
43°
19
62°
43°
20
64°
40°
21
59°
35°
22
59°
35°
23
60°
38°
24
59°
35°
25
60°
36°
26
60°
38°
27
61°
37°
28
60°
37°
29
63°
46°
30
62°
45°
31
64°
46°
1
71°
48°
2
72°
49°
3
73°
49°
4
74°
50°
5
74°
50°
6
73°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cromwell
Cromwell's May 2026 forecast shows daily high temperatures ranging from 43° to 74°, with overnight lows between 25° and 50°. The average high for May is 62° with an average low of 39°. 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 Cromwell. See also: June | July | August.
