S
M
T
W
T
F
S
26
82°
56°
27
82°
64°
28
74°
62°
29
80°
59°
30
66°
51°
1
63°
46°
2
68°
45°
3
70°
40°
4
78°
48°
5
75°
56°
6
76°
55°
7
69°
49°
8
69°
45°
9
74°
55°
10
81°
60°
11
75°
53°
12
79°
49°
13
80°
53°
14
74°
48°
15
82°
46°
16
81°
60°
17
87°
57°
18
88°
69°
19
89°
67°
20
82°
67°
21
82°
67°
22
82°
67°
23
80°
65°
24
83°
68°
25
83°
66°
26
82°
67°
27
84°
64°
28
84°
65°
29
81°
64°
30
81°
61°
31
85°
62°
1
87°
66°
2
87°
66°
3
84°
65°
4
81°
62°
5
83°
63°
6
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Glen Allen
Glen Allen's May 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 61° and 69°. The average high for May is 84° with an average low of 65°. 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 Glen Allen. See also: June | July | August.
