S
M
T
W
T
F
S
26
68°
42°
27
58°
48°
28
61°
43°
29
52°
35°
30
51°
30°
1
48°
29°
2
61°
30°
3
72°
42°
4
73°
38°
5
53°
34°
6
49°
28°
7
54°
30°
8
68°
30°
9
61°
33°
10
60°
27°
11
60°
29°
12
78°
38°
13
64°
44°
14
72°
32°
15
82°
49°
16
86°
52°
17
65°
60°
18
80°
63°
19
67°
41°
20
59°
39°
21
65°
44°
22
73°
47°
23
68°
52°
24
73°
51°
25
74°
55°
26
75°
54°
27
76°
53°
28
77°
51°
29
73°
49°
30
76°
55°
31
77°
56°
1
78°
56°
2
75°
55°
3
68°
51°
4
69°
50°
5
73°
56°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Seneca
Seneca's May 2026 forecast shows daily high temperatures ranging from 59° to 86°, with overnight lows between 39° and 63°. The average high for May is 73° with an average low of 52°. 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. See also: June | July | August.
