S
M
T
W
T
F
S
26
66°
52°
27
70°
50°
28
73°
46°
29
75°
48°
30
72°
55°
1
77°
54°
2
75°
59°
3
68°
59°
4
70°
57°
5
66°
55°
6
73°
52°
7
75°
54°
8
81°
61°
9
81°
61°
10
77°
57°
11
86°
55°
12
66°
59°
13
75°
59°
14
75°
61°
15
73°
61°
16
72°
61°
17
70°
55°
18
72°
57°
19
82°
52°
20
84°
52°
21
79°
59°
22
75°
61°
23
75°
63°
24
72°
63°
25
72°
61°
26
68°
57°
27
70°
57°
28
72°
54°
29
72°
57°
30
77°
54°
31
81°
57°
1
77°
59°
2
75°
59°
3
81°
57°
4
82°
59°
5
79°
60°
6
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Santee
Santee's May 2026 forecast shows daily high temperatures ranging from 77° to 82°, with overnight lows between 57° and 62°. The average high for May is 80° with an average low of 60°. 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 Santee. See also: June | July | August.
