S
M
T
W
T
F
S
26
64°
40°
27
64°
41°
28
63°
41°
29
65°
43°
30
65°
43°
1
64°
42°
2
65°
43°
3
66°
45°
4
67°
46°
5
68°
47°
6
68°
46°
7
67°
46°
8
68°
45°
9
60°
42°
10
62°
47°
11
59°
47°
12
70°
48°
13
69°
48°
14
70°
50°
15
71°
51°
16
72°
52°
17
71°
51°
18
71°
47°
19
68°
44°
20
63°
44°
21
64°
46°
22
63°
45°
23
62°
51°
24
67°
53°
25
72°
54°
26
75°
54°
27
75°
56°
28
70°
52°
29
77°
53°
30
69°
47°
31
69°
50°
1
76°
50°
2
78°
56°
3
79°
53°
4
78°
48°
5
70°
46°
6
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Flandreau
Flandreau's May 2026 forecast shows daily high temperatures ranging from 59° to 79°, with overnight lows between 40° and 56°. The average high for May is 68° with an average low of 48°. 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 Flandreau. See also: June | July | August.
