S
M
T
W
T
F
S
26
76°
49°
27
73°
57°
28
67°
56°
29
64°
41°
30
64°
41°
1
56°
40°
2
64°
37°
3
60°
42°
4
81°
45°
5
57°
41°
6
60°
36°
7
64°
42°
8
65°
46°
9
77°
44°
10
66°
42°
11
65°
43°
12
73°
39°
13
66°
42°
14
85°
42°
15
85°
60°
16
85°
64°
17
85°
67°
18
80°
65°
19
76°
51°
20
64°
43°
21
67°
52°
22
65°
56°
23
71°
56°
24
78°
54°
25
78°
56°
26
80°
58°
27
83°
60°
28
80°
60°
29
79°
59°
30
79°
60°
31
81°
59°
1
77°
54°
2
79°
58°
3
72°
55°
4
72°
52°
5
73°
59°
6
78°
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 64° to 83°, with overnight lows between 43° and 61°. The average high for May is 75° 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.
