S
M
T
W
T
F
S
26
51°
40°
27
68°
37°
28
65°
34°
29
69°
49°
30
72°
48°
1
68°
42°
2
60°
45°
3
60°
43°
4
74°
58°
5
84°
62°
6
78°
57°
7
63°
46°
8
67°
46°
9
66°
48°
10
72°
55°
11
74°
54°
12
69°
55°
13
72°
55°
14
72°
57°
15
73°
56°
16
72°
55°
17
79°
60°
18
79°
60°
19
78°
61°
20
79°
61°
21
78°
60°
22
73°
54°
23
72°
53°
24
71°
55°
25
73°
58°
26
74°
58°
27
73°
55°
28
73°
59°
29
74°
57°
30
74°
61°
31
75°
63°
1
78°
63°
2
75°
62°
3
76°
63°
4
78°
64°
5
81°
64°
6
81°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Delmar
Delmar's May 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 43° and 65°. The average high for May is 74° 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 Delmar. See also: June | July | August.