S
M
T
W
T
F
S
26
55°
44°
27
62°
39°
28
64°
41°
29
68°
38°
30
70°
37°
1
69°
37°
2
74°
38°
3
76°
42°
4
71°
49°
5
73°
46°
6
59°
39°
7
75°
32°
8
82°
44°
9
82°
46°
10
81°
43°
11
88°
43°
12
93°
48°
13
93°
49°
14
87°
55°
15
87°
46°
16
88°
55°
17
73°
46°
18
58°
34°
19
65°
42°
20
72°
41°
21
76°
46°
22
78°
52°
23
84°
55°
24
87°
54°
25
84°
56°
26
80°
54°
27
84°
53°
28
85°
56°
29
85°
57°
30
82°
48°
31
76°
43°
1
80°
44°
2
82°
47°
3
78°
45°
4
82°
48°
5
84°
52°
6
86°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Delta
Delta's May 2026 forecast shows daily high temperatures ranging from 58° to 87°, with overnight lows between 34° and 57°. The average high for May is 79° with an average low of 49°. 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 Delta. See also: June | July | August.
