S
M
T
W
T
F
S
26
73°
54°
27
68°
48°
28
59°
45°
29
63°
41°
30
64°
42°
1
65°
34°
2
67°
34°
3
79°
51°
4
87°
50°
5
58°
48°
6
64°
44°
7
77°
47°
8
71°
49°
9
86°
49°
10
74°
51°
11
84°
48°
12
85°
57°
13
81°
48°
14
82°
53°
15
94°
60°
16
89°
62°
17
85°
61°
18
78°
61°
19
78°
49°
20
64°
45°
21
63°
53°
22
76°
59°
23
75°
56°
24
82°
51°
25
86°
61°
26
87°
60°
27
88°
62°
28
81°
66°
29
75°
65°
30
79°
63°
31
81°
63°
1
82°
61°
2
83°
61°
3
82°
57°
4
81°
59°
5
81°
63°
6
84°
63°
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 75° to 88°, with overnight lows between 57° and 66°. The average high for May is 82° with an average low of 62°. 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.
