S
M
T
W
T
F
S
26
56°
34°
27
53°
35°
28
57°
35°
29
56°
40°
30
44°
37°
1
58°
31°
2
69°
38°
3
72°
47°
4
70°
44°
5
47°
31°
6
37°
29°
7
67°
36°
8
71°
46°
9
75°
47°
10
71°
46°
11
86°
53°
12
81°
48°
13
83°
56°
14
79°
54°
15
78°
54°
16
73°
51°
17
78°
54°
18
77°
53°
19
76°
52°
20
75°
53°
21
71°
44°
22
64°
46°
23
65°
44°
24
66°
46°
25
66°
42°
26
67°
42°
27
72°
47°
28
74°
49°
29
72°
47°
30
68°
46°
31
70°
48°
1
71°
48°
2
75°
50°
3
78°
52°
4
76°
49°
5
66°
47°
6
69°
48°
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 64° to 86°, with overnight lows between 42° and 56°. The average high for May is 73° with an average low of 49°. 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.
