S
M
T
W
T
F
S
26
73°
48°
27
71°
50°
28
63°
46°
29
57°
42°
30
56°
37°
1
55°
33°
2
62°
31°
3
75°
48°
4
81°
43°
5
57°
39°
6
50°
33°
7
63°
32°
8
74°
34°
9
68°
42°
10
67°
36°
11
65°
35°
12
82°
46°
13
68°
46°
14
75°
41°
15
85°
58°
16
83°
62°
17
66°
58°
18
77°
61°
19
67°
50°
20
64°
45°
21
58°
48°
22
61°
49°
23
70°
50°
24
79°
57°
25
84°
59°
26
86°
60°
27
81°
58°
28
81°
58°
29
76°
56°
30
76°
55°
31
74°
54°
1
76°
54°
2
74°
53°
3
76°
54°
4
78°
57°
5
75°
56°
6
73°
61°
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 70° to 86°, with overnight lows between 50° and 61°. The average high for May is 77° with an average low of 56°. 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.
