S
M
T
W
T
F
S
26
90°
72°
27
90°
68°
28
86°
66°
29
88°
66°
30
90°
66°
31
91°
64°
1
91°
68°
2
93°
68°
3
90°
66°
4
84°
68°
5
86°
66°
6
90°
70°
7
91°
70°
8
93°
66°
9
93°
68°
10
91°
70°
11
90°
70°
12
88°
72°
13
81°
70°
14
82°
68°
15
84°
68°
16
87°
66°
17
90°
66°
18
92°
65°
19
93°
66°
20
92°
67°
21
92°
66°
22
91°
67°
23
92°
65°
24
89°
67°
25
91°
65°
26
93°
64°
27
93°
65°
28
91°
65°
29
89°
64°
30
87°
66°
31
85°
67°
1
85°
66°
2
86°
67°
3
85°
67°
4
88°
68°
5
90°
67°
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 85° to 93°, with overnight lows between 64° and 68°. The average high for August is 90° with an average low of 66°. 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.
