S
M
T
W
T
F
S
26
88°
73°
27
90°
73°
28
88°
69°
29
77°
64°
30
67°
57°
1
62°
53°
2
64°
49°
3
74°
54°
4
77°
59°
5
79°
60°
6
80°
60°
7
82°
63°
8
81°
62°
9
83°
70°
10
84°
65°
11
84°
66°
12
85°
67°
13
82°
62°
14
77°
59°
15
77°
59°
16
78°
60°
17
79°
62°
18
80°
62°
19
80°
63°
20
81°
63°
21
82°
66°
22
83°
69°
23
81°
69°
24
83°
70°
25
83°
70°
26
86°
69°
27
83°
70°
28
84°
66°
29
85°
67°
30
87°
68°
31
86°
69°
1
89°
71°
2
90°
72°
3
90°
72°
4
89°
71°
5
91°
73°
6
90°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Swan
Swan's May 2026 forecast shows daily high temperatures ranging from 62° to 91°, with overnight lows between 49° and 73°. The average high for May is 82° 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 Swan. See also: June | July | August.
