S
M
T
W
T
F
S
26
52°
41°
27
46°
40°
28
49°
34°
29
53°
32°
30
50°
30°
1
54°
30°
2
71°
33°
3
71°
40°
4
61°
41°
5
47°
30°
6
49°
34°
7
62°
40°
8
68°
42°
9
66°
37°
10
61°
39°
11
69°
47°
12
69°
48°
13
72°
44°
14
68°
43°
15
70°
45°
16
68°
46°
17
64°
45°
18
71°
47°
19
69°
52°
20
69°
46°
21
63°
43°
22
64°
43°
23
65°
44°
24
65°
43°
25
64°
44°
26
65°
44°
27
65°
45°
28
66°
45°
29
68°
53°
30
67°
48°
31
69°
51°
1
76°
56°
2
77°
57°
3
78°
58°
4
79°
59°
5
79°
59°
6
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Norcross
Norcross's May 2026 forecast shows daily high temperatures ranging from 47° to 79°, with overnight lows between 30° and 59°. The average high for May is 68° 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 Norcross. See also: June | July | August.