S
M
T
W
T
F
S
26
89°
65°
27
88°
68°
28
89°
66°
29
86°
66°
30
87°
65°
31
89°
67°
1
94°
67°
2
90°
67°
3
89°
68°
4
83°
66°
5
83°
64°
6
87°
67°
7
87°
67°
8
89°
67°
9
89°
70°
10
88°
69°
11
89°
65°
12
87°
65°
13
88°
65°
14
87°
64°
15
88°
63°
16
90°
64°
17
88°
63°
18
87°
64°
19
89°
62°
20
90°
64°
21
90°
64°
22
91°
65°
23
92°
66°
24
92°
66°
25
91°
65°
26
91°
65°
27
90°
66°
28
91°
66°
29
90°
65°
30
91°
66°
31
91°
66°
1
90°
65°
2
91°
65°
3
89°
64°
4
88°
66°
5
87°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Foothill Ranch
Foothill Ranch's August 2026 forecast shows daily high temperatures ranging from 87° to 92°, with overnight lows between 62° and 70°. The average high for August is 89° with an average low of 65°. 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 Foothill Ranch. See also: September | October | November.
