S
M
T
W
T
F
S
26
46°
33°
27
50°
31°
28
54°
33°
29
61°
30°
30
60°
39°
1
67°
35°
2
78°
29°
3
73°
37°
4
66°
40°
5
47°
37°
6
57°
29°
7
71°
33°
8
71°
44°
9
69°
45°
10
73°
38°
11
90°
41°
12
78°
46°
13
93°
48°
14
85°
54°
15
82°
48°
16
80°
48°
17
63°
46°
18
48°
38°
19
57°
32°
20
65°
38°
21
64°
36°
22
65°
37°
23
75°
43°
24
79°
47°
25
83°
52°
26
79°
46°
27
78°
47°
28
79°
51°
29
80°
52°
30
74°
51°
31
77°
52°
1
73°
48°
2
68°
51°
3
69°
49°
4
77°
53°
5
76°
53°
6
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Glendo
Glendo's May 2026 forecast shows daily high temperatures ranging from 57° to 83°, with overnight lows between 32° and 53°. The average high for May is 73° with an average low of 47°. 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 Glendo. See also: June | July | August.