S
M
T
W
T
F
S
26
46°
41°
27
59°
41°
28
63°
45°
29
68°
46°
30
73°
54°
1
73°
59°
2
70°
59°
3
63°
48°
4
48°
45°
5
52°
45°
6
67°
54°
7
77°
57°
8
78°
56°
9
80°
60°
10
82°
64°
11
87°
64°
12
89°
59°
13
80°
55°
14
79°
52°
15
76°
51°
16
75°
53°
17
73°
51°
18
72°
50°
19
77°
49°
20
72°
46°
21
71°
47°
22
72°
48°
23
75°
50°
24
77°
50°
25
78°
49°
26
77°
48°
27
80°
50°
28
77°
49°
29
82°
55°
30
84°
56°
31
85°
56°
1
85°
55°
2
84°
56°
3
81°
53°
4
76°
54°
5
76°
53°
6
77°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Apex
Apex's May 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 46° and 64°. The average high for May is 78° with an average low of 53°. 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 Apex. See also: June | July | August.