S
M
T
W
T
F
S
26
84°
67°
27
72°
66°
28
82°
66°
29
92°
68°
30
89°
72°
1
85°
70°
2
72°
62°
3
74°
58°
4
79°
61°
5
82°
64°
6
91°
68°
7
91°
71°
8
N/A
9
82°
70°
10
83°
70°
11
84°
68°
12
79°
64°
13
85°
69°
14
89°
64°
15
88°
64°
16
86°
68°
17
89°
72°
18
89°
70°
19
90°
71°
20
92°
74°
21
92°
73°
22
91°
70°
23
84°
72°
24
85°
71°
25
85°
72°
26
84°
72°
27
85°
73°
28
85°
73°
29
83°
72°
30
83°
74°
31
84°
74°
1
85°
73°
2
88°
74°
3
87°
74°
4
85°
73°
5
86°
74°
6
87°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in San Marco
San Marco's May 2026 forecast shows daily high temperatures ranging from 79° to 92°, with overnight lows between 64° and 75°. The average high for May is 86° with an average low of 71°. 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 Marco. See also: June | July | August.
