S
M
T
W
T
F
S
26
54°
22°
27
49°
32°
28
50°
28°
29
61°
32°
30
57°
24°
1
61°
22°
2
76°
37°
3
73°
39°
4
59°
32°
5
50°
24°
6
56°
20°
7
65°
26°
8
71°
34°
9
63°
31°
10
66°
31°
11
82°
42°
12
74°
40°
13
81°
38°
14
80°
42°
15
78°
38°
16
72°
36°
17
52°
42°
18
45°
41°
19
59°
36°
20
69°
34°
21
71°
50°
22
54°
45°
23
71°
49°
24
82°
57°
25
88°
58°
26
88°
60°
27
84°
60°
28
79°
55°
29
77°
54°
30
73°
51°
31
75°
50°
1
76°
54°
2
80°
53°
3
78°
54°
4
79°
53°
5
74°
50°
6
75°
55°
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 71° to 88°, with overnight lows between 49° and 60°. The average high for May is 79° 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. See also: June | July | August.
