S
M
T
W
T
F
S
26
51°
35°
27
45°
39°
28
51°
34°
29
57°
27°
30
53°
26°
1
55°
28°
2
72°
35°
3
71°
44°
4
63°
36°
5
48°
29°
6
49°
27°
7
63°
25°
8
72°
35°
9
60°
36°
10
60°
31°
11
76°
27°
12
73°
46°
13
78°
38°
14
82°
51°
15
81°
49°
16
73°
46°
17
73°
43°
18
49°
41°
19
52°
33°
20
66°
39°
21
68°
41°
22
59°
47°
23
65°
47°
24
79°
55°
25
81°
60°
26
83°
58°
27
80°
55°
28
77°
56°
29
83°
61°
30
81°
59°
31
79°
55°
1
76°
52°
2
69°
56°
3
72°
54°
4
73°
58°
5
75°
58°
6
72°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sisseton
Sisseton's May 2026 forecast shows daily high temperatures ranging from 52° to 83°, with overnight lows between 33° and 61°. The average high for May is 73° 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 Sisseton. See also: June | July | August.
