S
M
T
W
T
F
S
26
86°
72°
27
87°
74°
28
88°
75°
29
89°
72°
30
84°
73°
31
84°
74°
1
85°
73°
2
84°
74°
3
87°
75°
4
89°
75°
5
90°
74°
6
85°
72°
7
89°
74°
8
90°
74°
9
86°
75°
10
90°
74°
11
87°
73°
12
87°
74°
13
88°
74°
14
88°
73°
15
85°
70°
16
82°
70°
17
81°
73°
18
82°
74°
19
83°
74°
20
84°
73°
21
84°
73°
22
85°
72°
23
86°
72°
24
90°
73°
25
89°
73°
26
89°
72°
27
88°
71°
28
85°
72°
29
81°
70°
30
85°
66°
31
81°
67°
1
80°
71°
2
80°
71°
3
86°
70°
4
87°
71°
5
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in California
California's August 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 66° and 75°. The average high for August is 86° with an average low of 72°. 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 California. See also: September | October | November.
