S
M
T
W
T
F
S
26
54°
40°
27
66°
40°
28
64°
41°
29
62°
45°
30
58°
46°
1
64°
42°
2
59°
46°
3
58°
42°
4
71°
48°
5
77°
51°
6
66°
53°
7
62°
46°
8
60°
43°
9
60°
51°
10
69°
49°
11
58°
42°
12
61°
44°
13
57°
50°
14
65°
50°
15
67°
49°
16
72°
53°
17
73°
55°
18
75°
58°
19
76°
55°
20
73°
55°
21
74°
56°
22
75°
51°
23
78°
57°
24
77°
56°
25
77°
56°
26
78°
57°
27
79°
58°
28
80°
58°
29
79°
59°
30
80°
59°
31
79°
58°
1
78°
56°
2
72°
55°
3
72°
53°
4
76°
59°
5
75°
60°
6
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Darien
Darien's May 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 42° and 60°. The average high for May is 73° with an average low of 54°. 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 Darien. See also: June | July | August.
