S
M
T
W
T
F
S
26
47°
32°
27
48°
31°
28
48°
32°
29
49°
33°
30
49°
33°
1
50°
34°
2
50°
36°
3
50°
38°
4
51°
36°
5
55°
36°
6
57°
38°
7
51°
39°
8
51°
39°
9
52°
38°
10
53°
37°
11
54°
37°
12
57°
40°
13
54°
39°
14
55°
39°
15
58°
40°
16
59°
41°
17
60°
43°
18
63°
45°
19
62°
44°
20
63°
42°
21
60°
44°
22
63°
42°
23
64°
43°
24
56°
41°
25
58°
44°
26
57°
41°
27
58°
43°
28
58°
43°
29
59°
44°
30
58°
44°
31
59°
45°
1
60°
47°
2
60°
45°
3
61°
46°
4
60°
50°
5
61°
50°
6
62°
51°
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 47° to 64°, with overnight lows between 31° and 51°. The average high for May is 56° with an average low of 41°. 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.
