S
M
T
W
T
F
S
26
67°
38°
27
66°
41°
28
67°
46°
29
72°
40°
30
79°
43°
1
70°
52°
2
72°
51°
3
85°
51°
4
70°
54°
5
73°
54°
6
74°
51°
7
76°
51°
8
75°
49°
9
83°
47°
10
74°
52°
11
81°
48°
12
78°
53°
13
68°
50°
14
72°
44°
15
67°
48°
16
60°
46°
17
64°
45°
18
74°
42°
19
77°
44°
20
76°
50°
21
85°
48°
22
84°
53°
23
82°
52°
24
85°
50°
25
74°
46°
26
64°
47°
27
70°
51°
28
80°
47°
29
66°
46°
30
73°
45°
31
78°
48°
1
89°
54°
2
90°
52°
3
87°
52°
4
85°
52°
5
82°
53°
6
81°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Riddle
Riddle's May 2026 forecast shows daily high temperatures ranging from 64° to 90°, with overnight lows between 45° and 54°. The average high for May is 78° with an average low of 50°. 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 Riddle. See also: June | July | August.