S
M
T
W
T
F
S
26
66°
53°
27
67°
54°
28
75°
49°
29
78°
50°
30
76°
54°
1
79°
56°
2
78°
55°
3
70°
54°
4
68°
51°
5
69°
55°
6
76°
56°
7
79°
57°
8
77°
56°
9
75°
57°
10
75°
58°
11
77°
59°
12
79°
59°
13
80°
58°
14
78°
56°
15
73°
52°
16
74°
54°
17
73°
54°
18
74°
53°
19
74°
54°
20
75°
56°
21
81°
59°
22
81°
60°
23
82°
60°
24
81°
59°
25
82°
60°
26
81°
60°
27
79°
59°
28
78°
57°
29
77°
56°
30
75°
54°
31
75°
54°
1
76°
56°
2
78°
58°
3
79°
59°
4
81°
60°
5
80°
60°
6
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sepulveda Basin
Sepulveda Basin's May 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 51° and 60°. The average high for May is 77° with an average low of 57°. 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 Sepulveda Basin. See also: June | July | August.
