S
M
T
W
T
F
S
26
84°
60°
27
76°
58°
28
68°
56°
29
83°
62°
30
74°
59°
1
68°
56°
2
70°
49°
3
70°
43°
4
79°
44°
5
79°
47°
6
81°
63°
7
70°
56°
8
72°
49°
9
71°
56°
10
82°
55°
11
81°
58°
12
72°
55°
13
79°
53°
14
73°
54°
15
78°
45°
16
86°
51°
17
89°
62°
18
88°
63°
19
89°
63°
20
88°
65°
21
85°
68°
22
87°
69°
23
79°
65°
24
78°
68°
25
78°
67°
26
78°
66°
27
82°
68°
28
85°
67°
29
82°
66°
30
77°
60°
31
75°
61°
1
78°
60°
2
77°
62°
3
80°
63°
4
81°
64°
5
82°
63°
6
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Suwanee-Duluth
Suwanee-Duluth's May 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 60° and 68°. The average high for May is 79° with an average low of 64°. 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 Suwanee-Duluth. See also: June | July | August.