S
M
T
W
T
F
S
26
61°
31°
27
63°
34°
28
57°
32°
29
44°
39°
30
46°
41°
1
59°
36°
2
50°
30°
3
45°
39°
4
59°
36°
5
58°
45°
6
55°
49°
7
60°
39°
8
57°
38°
9
58°
31°
10
55°
47°
11
61°
45°
12
56°
40°
13
55°
40°
14
64°
46°
15
60°
51°
16
69°
48°
17
80°
52°
18
57°
47°
19
62°
54°
20
68°
48°
21
58°
42°
22
56°
42°
23
56°
45°
24
54°
46°
25
62°
45°
26
60°
47°
27
61°
45°
28
59°
46°
29
64°
48°
30
63°
48°
31
65°
46°
1
62°
47°
2
61°
47°
3
61°
46°
4
62°
50°
5
61°
51°
6
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Addison
Addison's May 2026 forecast shows daily high temperatures ranging from 54° to 68°, with overnight lows between 42° and 54°. The average high for May is 61° with an average low of 47°. 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 Addison. See also: June | July | August.