S
M
T
W
T
F
S
26
59°
34°
27
70°
34°
28
61°
48°
29
55°
45°
30
48°
34°
1
50°
28°
2
46°
36°
3
54°
34°
4
70°
41°
5
72°
46°
6
46°
41°
7
52°
32°
8
52°
36°
9
55°
36°
10
59°
34°
11
54°
30°
12
59°
28°
13
63°
43°
14
48°
43°
15
63°
39°
16
77°
36°
17
81°
48°
18
88°
54°
19
84°
59°
20
72°
43°
21
59°
41°
22
63°
36°
23
54°
46°
24
55°
46°
25
70°
48°
26
79°
46°
27
75°
49°
28
62°
47°
29
68°
43°
30
62°
40°
31
68°
50°
1
66°
47°
2
68°
47°
3
73°
52°
4
76°
56°
5
77°
54°
6
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Otisco Valley
Otisco Valley's May 2026 forecast shows daily high temperatures ranging from 62° to 77°, with overnight lows between 40° and 56°. The average high for May is 70° with an average low of 49°. 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 Otisco Valley. See also: June | July | August.