S
M
T
W
T
F
S
26
56°
34°
27
53°
35°
28
57°
35°
29
56°
40°
30
44°
37°
1
60°
36°
2
70°
45°
3
72°
45°
4
67°
38°
5
44°
31°
6
47°
40°
7
68°
45°
8
73°
49°
9
71°
50°
10
69°
46°
11
67°
47°
12
69°
48°
13
71°
46°
14
69°
44°
15
60°
41°
16
62°
40°
17
62°
40°
18
64°
41°
19
65°
41°
20
65°
45°
21
63°
44°
22
64°
41°
23
65°
41°
24
61°
42°
25
60°
40°
26
62°
40°
27
65°
39°
28
66°
41°
29
72°
45°
30
76°
51°
31
70°
51°
1
73°
50°
2
74°
48°
3
74°
49°
4
78°
50°
5
75°
51°
6
77°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Southglenn
Southglenn's May 2026 forecast shows daily high temperatures ranging from 44° to 78°, with overnight lows between 31° and 53°. The average high for May is 67° with an average low of 44°. 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 Southglenn. See also: June | July | August.
