S
M
T
W
T
F
S
26
83°
49°
27
80°
44°
28
83°
44°
29
78°
53°
30
71°
54°
1
67°
49°
2
65°
45°
3
75°
46°
4
83°
58°
5
77°
51°
6
78°
48°
7
79°
51°
8
88°
57°
9
91°
58°
10
92°
59°
11
89°
61°
12
94°
64°
13
97°
63°
14
95°
63°
15
96°
64°
16
95°
62°
17
89°
54°
18
88°
58°
19
91°
60°
20
90°
59°
21
92°
59°
22
82°
54°
23
89°
60°
24
92°
61°
25
91°
60°
26
86°
61°
27
91°
61°
28
90°
60°
29
86°
59°
30
86°
57°
31
87°
58°
1
86°
58°
2
87°
59°
3
88°
60°
4
88°
58°
5
89°
60°
6
91°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in San Miguel
San Miguel's May 2026 forecast shows daily high temperatures ranging from 77° to 97°, with overnight lows between 48° and 64°. The average high for May is 89° with an average low of 59°. 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 Miguel. See also: June | July | August.