S
M
T
W
T
F
S
26
90°
70°
27
90°
70°
28
91°
71°
29
90°
72°
30
90°
72°
31
91°
70°
1
90°
70°
2
91°
71°
3
91°
70°
4
92°
70°
5
91°
72°
6
92°
70°
7
92°
69°
8
89°
70°
9
89°
70°
10
90°
71°
11
90°
71°
12
89°
70°
13
89°
68°
14
90°
70°
15
92°
72°
16
92°
73°
17
91°
72°
18
92°
72°
19
92°
70°
20
90°
72°
21
91°
72°
22
91°
71°
23
90°
72°
24
91°
72°
25
91°
71°
26
90°
71°
27
91°
70°
28
91°
71°
29
89°
71°
30
90°
70°
31
90°
69°
1
89°
68°
2
89°
67°
3
88°
68°
4
89°
69°
5
89°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Santee
Santee's August 2026 forecast shows daily high temperatures ranging from 88° to 92°, with overnight lows between 67° and 73°. The average high for August is 90° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Santee. See also: September | October | November.
