S
M
T
W
T
F
S
26
87°
67°
27
89°
71°
28
90°
68°
29
91°
69°
30
90°
71°
31
88°
72°
1
90°
71°
2
92°
71°
3
92°
70°
4
91°
70°
5
93°
70°
6
93°
70°
7
92°
69°
8
93°
70°
9
93°
68°
10
92°
65°
11
84°
63°
12
82°
63°
13
83°
64°
14
84°
63°
15
85°
66°
16
86°
68°
17
91°
69°
18
92°
68°
19
93°
69°
20
92°
68°
21
91°
66°
22
83°
66°
23
91°
66°
24
82°
64°
25
82°
65°
26
Hist. Avg.
86°
65°
27
Hist. Avg.
86°
65°
28
Hist. Avg.
86°
65°
29
Hist. Avg.
86°
64°
30
Hist. Avg.
85°
64°
31
Hist. Avg.
85°
64°
1
Hist. Avg.
85°
64°
2
Hist. Avg.
85°
63°
3
Hist. Avg.
84°
63°
4
Hist. Avg.
84°
63°
5
Hist. Avg.
84°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in California
California's August 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 63° and 72°. The average high for August is 89° with an average low of 68°. 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.