S
M
T
W
T
F
S
26
52°
37°
27
45°
39°
28
48°
34°
29
52°
27°
30
48°
27°
1
55°
25°
2
66°
28°
3
68°
46°
4
52°
30°
5
42°
30°
6
47°
31°
7
56°
33°
8
60°
36°
9
64°
39°
10
60°
40°
11
64°
44°
12
69°
47°
13
66°
47°
14
66°
43°
15
64°
45°
16
65°
44°
17
67°
49°
18
67°
50°
19
65°
50°
20
65°
45°
21
60°
41°
22
60°
42°
23
61°
43°
24
61°
42°
25
62°
43°
26
62°
43°
27
63°
44°
28
63°
45°
29
65°
52°
30
64°
47°
31
66°
51°
1
73°
56°
2
75°
57°
3
75°
58°
4
76°
59°
5
75°
59°
6
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ottertail
Ottertail's May 2026 forecast shows daily high temperatures ranging from 42° to 76°, with overnight lows between 30° and 59°. The average high for May is 64° with an average low of 45°. 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 Ottertail. See also: June | July | August.
