S
M
T
W
T
F
S
26
52°
30°
27
54°
31°
28
54°
34°
29
48°
34°
30
46°
31°
1
51°
41°
2
51°
37°
3
53°
30°
4
59°
39°
5
53°
40°
6
42°
34°
7
48°
33°
8
50°
33°
9
56°
36°
10
60°
44°
11
55°
36°
12
58°
39°
13
62°
40°
14
56°
38°
15
53°
39°
16
56°
38°
17
60°
44°
18
58°
41°
19
58°
42°
20
60°
41°
21
60°
42°
22
60°
40°
23
54°
36°
24
56°
37°
25
60°
36°
26
56°
37°
27
58°
38°
28
58°
38°
29
57°
39°
30
60°
38°
31
62°
39°
1
63°
40°
2
65°
42°
3
65°
41°
4
64°
41°
5
66°
42°
6
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Delta Junction
Delta Junction's May 2026 forecast shows daily high temperatures ranging from 53° to 66°, with overnight lows between 36° and 45°. The average high for May is 59° with an average low of 40°. 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 Junction. See also: June | July | August.