S
M
T
W
T
F
S
26
53°
32°
27
51°
32°
28
55°
34°
29
54°
34°
30
47°
33°
1
49°
33°
2
49°
34°
3
50°
34°
4
50°
38°
5
51°
38°
6
53°
36°
7
57°
38°
8
59°
42°
9
58°
41°
10
60°
41°
11
60°
40°
12
59°
42°
13
60°
41°
14
61°
42°
15
61°
44°
16
60°
44°
17
60°
42°
18
54°
42°
19
54°
43°
20
55°
41°
21
57°
40°
22
57°
41°
23
57°
42°
24
58°
41°
25
57°
42°
26
58°
43°
27
63°
42°
28
57°
42°
29
57°
43°
30
61°
42°
31
60°
44°
1
64°
47°
2
65°
45°
3
58°
43°
4
59°
48°
5
64°
50°
6
67°
52°
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 67°, with overnight lows between 32° and 52°. The average high for May is 57° 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.
