S
M
T
W
T
F
S
26
90°
66°
27
88°
66°
28
89°
64°
29
87°
65°
30
88°
66°
31
89°
68°
1
91°
68°
2
91°
67°
3
90°
68°
4
91°
68°
5
91°
66°
6
90°
62°
7
88°
63°
8
87°
64°
9
88°
65°
10
89°
67°
11
91°
66°
12
91°
67°
13
90°
68°
14
91°
68°
15
91°
67°
16
88°
64°
17
85°
62°
18
84°
61°
19
85°
61°
20
84°
63°
21
86°
67°
22
88°
68°
23
92°
68°
24
91°
67°
25
90°
66°
26
88°
65°
27
87°
66°
28
89°
67°
29
91°
68°
30
90°
69°
31
91°
68°
1
91°
67°
2
86°
61°
3
86°
62°
4
Hist. Avg.
90°
63°
5
Hist. Avg.
90°
63°
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 84° to 92°, with overnight lows between 61° and 69°. The average high for August is 89° 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.
