S
M
T
W
T
F
S
26
79°
61°
27
72°
54°
28
66°
52°
29
82°
59°
30
75°
59°
1
66°
55°
2
64°
50°
3
68°
43°
4
77°
46°
5
79°
54°
6
79°
64°
7
79°
57°
8
70°
54°
9
73°
55°
10
81°
57°
11
75°
61°
12
72°
54°
13
79°
54°
14
76°
49°
15
78°
56°
16
85°
63°
17
89°
67°
18
87°
64°
19
86°
64°
20
83°
66°
21
80°
64°
22
79°
62°
23
77°
60°
24
77°
60°
25
78°
62°
26
79°
59°
27
82°
64°
28
81°
63°
29
83°
64°
30
83°
64°
31
82°
62°
1
80°
64°
2
83°
64°
3
83°
65°
4
79°
65°
5
83°
66°
6
84°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Welcome
Welcome's May 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 49° and 67°. The average high for May is 81° with an average low of 62°. 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 Welcome. See also: June | July | August.