S
M
T
W
T
F
S
26
67°
48°
27
61°
46°
28
62°
42°
29
62°
45°
30
67°
49°
1
67°
46°
2
64°
43°
3
63°
44°
4
64°
45°
5
67°
50°
6
72°
51°
7
73°
49°
8
66°
50°
9
65°
52°
10
66°
52°
11
74°
53°
12
75°
54°
13
75°
54°
14
74°
53°
15
70°
47°
16
70°
46°
17
72°
48°
18
71°
50°
19
73°
46°
20
70°
47°
21
70°
54°
22
74°
54°
23
75°
56°
24
75°
54°
25
76°
51°
26
71°
50°
27
76°
51°
28
73°
51°
29
74°
50°
30
77°
48°
31
76°
50°
1
75°
58°
2
76°
58°
3
80°
56°
4
81°
55°
5
80°
58°
6
81°
60°
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 61° to 81°, with overnight lows between 42° and 60°. The average high for May is 71° with an average low of 51°. 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.
