S
M
T
W
T
F
S
26
59°
35°
27
71°
35°
28
63°
51°
29
59°
46°
30
51°
37°
1
50°
35°
2
48°
35°
3
57°
33°
4
74°
48°
5
73°
46°
6
48°
43°
7
52°
32°
8
56°
35°
9
63°
41°
10
61°
37°
11
54°
33°
12
58°
33°
13
69°
44°
14
49°
42°
15
67°
43°
16
81°
45°
17
83°
59°
18
91°
60°
19
86°
64°
20
73°
50°
21
59°
42°
22
66°
51°
23
55°
47°
24
65°
56°
25
75°
54°
26
80°
58°
27
75°
52°
28
65°
50°
29
69°
49°
30
66°
51°
31
73°
57°
1
72°
58°
2
74°
58°
3
72°
57°
4
71°
53°
5
76°
58°
6
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Seneca Castle
Seneca Castle's May 2026 forecast shows daily high temperatures ranging from 55° to 80°, with overnight lows between 47° and 58°. The average high for May is 71° with an average low of 54°. 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 Seneca Castle. See also: June | July | August.
