S
M
T
W
T
F
S
26
90°
79°
27
88°
76°
28
88°
75°
29
87°
76°
30
89°
76°
1
89°
76°
2
88°
77°
3
87°
76°
4
88°
76°
5
87°
75°
6
88°
77°
7
88°
77°
8
87°
76°
9
88°
76°
10
89°
77°
11
89°
77°
12
88°
76°
13
88°
77°
14
89°
77°
15
88°
76°
16
88°
77°
17
87°
77°
18
89°
76°
19
88°
77°
20
88°
77°
21
87°
76°
22
87°
77°
23
86°
77°
24
86°
76°
25
85°
74°
26
87°
74°
27
85°
75°
28
85°
74°
29
86°
76°
30
87°
75°
31
87°
74°
1
85°
74°
2
87°
75°
3
85°
73°
4
85°
73°
5
86°
74°
6
86°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in San Marcelino
San Marcelino's May 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 73° and 79°. The average high for May is 87° with an average low of 76°. 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 San Marcelino. See also: June | July | August.
