S
M
T
W
T
F
S
26
69°
53°
27
74°
47°
28
82°
48°
29
82°
54°
30
84°
54°
1
83°
56°
2
82°
60°
3
86°
64°
4
77°
60°
5
70°
52°
6
76°
47°
7
87°
55°
8
91°
61°
9
95°
67°
10
98°
71°
11
96°
65°
12
100°
67°
13
92°
68°
14
90°
63°
15
89°
61°
16
89°
61°
17
84°
61°
18
79°
59°
19
83°
57°
20
86°
59°
21
85°
60°
22
90°
60°
23
79°
55°
24
74°
54°
25
67°
52°
26
68°
52°
27
71°
51°
28
75°
45°
29
74°
48°
30
84°
49°
31
82°
50°
1
81°
52°
2
82°
49°
3
80°
51°
4
80°
50°
5
82°
48°
6
76°
48°
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 67° to 84°, with overnight lows between 45° and 55°. The average high for May is 77° with an average low of 50°. 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.
