S
M
T
W
T
F
S
26
80°
61°
27
85°
66°
28
84°
66°
29
85°
65°
30
85°
65°
31
79°
64°
1
81°
64°
2
79°
65°
3
79°
63°
4
80°
62°
5
81°
63°
6
80°
64°
7
80°
63°
8
79°
62°
9
79°
65°
10
78°
65°
11
78°
64°
12
79°
63°
13
77°
59°
14
77°
60°
15
78°
61°
16
78°
58°
17
77°
59°
18
77°
60°
19
78°
60°
20
82°
64°
21
83°
57°
22
79°
55°
23
76°
55°
24
77°
57°
25
76°
58°
26
77°
62°
27
83°
60°
28
75°
62°
29
78°
62°
30
84°
54°
31
75°
53°
1
75°
54°
2
76°
59°
3
75°
54°
4
76°
61°
5
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Orange County
Orange County's August 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 53° and 66°. The average high for August is 79° with an average low of 61°. 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 Orange County. See also: September | October | November.
