S
M
T
W
T
F
S
26
79°
59°
27
70°
55°
28
67°
52°
29
82°
60°
30
74°
60°
1
66°
56°
2
65°
48°
3
70°
41°
4
77°
46°
5
80°
52°
6
78°
64°
7
77°
56°
8
69°
51°
9
73°
55°
10
81°
57°
11
77°
58°
12
72°
53°
13
78°
50°
14
77°
56°
15
75°
46°
16
82°
53°
17
87°
62°
18
87°
62°
19
87°
63°
20
88°
66°
21
86°
65°
22
79°
63°
23
80°
66°
24
83°
67°
25
81°
68°
26
80°
66°
27
82°
66°
28
81°
65°
29
80°
65°
30
82°
63°
31
80°
62°
1
85°
66°
2
85°
67°
3
84°
66°
4
80°
66°
5
80°
61°
6
82°
67°
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 79° to 88°, with overnight lows between 61° and 68°. The average high for May is 83° with an average low of 65°. 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.
