S
M
T
W
T
F
S
26
84°
61°
27
84°
62°
28
76°
62°
29
81°
60°
30
67°
53°
1
69°
50°
2
67°
44°
3
68°
47°
4
78°
55°
5
77°
64°
6
73°
54°
7
67°
44°
8
71°
50°
9
76°
55°
10
76°
55°
11
78°
59°
12
81°
57°
13
77°
57°
14
81°
56°
15
79°
61°
16
82°
61°
17
82°
60°
18
81°
62°
19
81°
62°
20
83°
61°
21
83°
62°
22
82°
63°
23
82°
63°
24
78°
62°
25
80°
64°
26
82°
64°
27
78°
63°
28
79°
59°
29
82°
62°
30
80°
59°
31
80°
63°
1
84°
64°
2
86°
65°
3
86°
65°
4
87°
64°
5
80°
64°
6
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rainbow
Rainbow's May 2026 forecast shows daily high temperatures ranging from 67° to 87°, with overnight lows between 44° and 65°. The average high for May is 79° with an average low of 59°. 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 Rainbow. See also: June | July | August.
