S
M
T
W
T
F
S
26
89°
64°
27
88°
63°
28
86°
60°
29
84°
60°
30
86°
63°
31
85°
61°
1
85°
61°
2
87°
62°
3
91°
64°
4
92°
64°
5
91°
63°
6
90°
66°
7
92°
66°
8
93°
64°
9
93°
63°
10
91°
65°
11
92°
65°
12
93°
64°
13
92°
65°
14
92°
65°
15
90°
64°
16
91°
62°
17
89°
61°
18
87°
60°
19
86°
61°
20
85°
59°
21
85°
59°
22
86°
60°
23
86°
60°
24
87°
65°
25
89°
66°
26
92°
64°
27
90°
64°
28
91°
63°
29
92°
63°
30
91°
64°
31
90°
64°
1
87°
63°
2
89°
62°
3
91°
62°
4
90°
64°
5
91°
64°
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 84° to 93°, with overnight lows between 59° and 66°. The average high for August is 89° with an average low of 63°. 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.
