S
M
T
W
T
F
S
26
88°
54°
27
89°
55°
28
88°
57°
29
89°
56°
30
87°
57°
31
89°
55°
1
89°
57°
2
88°
55°
3
82°
54°
4
83°
55°
5
86°
54°
6
87°
54°
7
87°
55°
8
89°
55°
9
89°
53°
10
88°
53°
11
88°
57°
12
89°
55°
13
89°
54°
14
88°
55°
15
89°
56°
16
88°
57°
17
88°
54°
18
85°
52°
19
83°
54°
20
88°
54°
21
88°
54°
22
89°
54°
23
Hist. Avg.
86°
53°
24
Hist. Avg.
86°
53°
25
Hist. Avg.
86°
53°
26
Hist. Avg.
86°
53°
27
Hist. Avg.
86°
52°
28
Hist. Avg.
86°
52°
29
Hist. Avg.
86°
52°
30
Hist. Avg.
86°
52°
31
Hist. Avg.
86°
52°
1
Hist. Avg.
86°
52°
2
Hist. Avg.
86°
52°
3
Hist. Avg.
86°
52°
4
Hist. Avg.
86°
52°
5
Hist. Avg.
86°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Sonoma
Sonoma's August 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 52° and 57°. The average high for August is 88° with an average low of 55°. 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 Sonoma. See also: September | October | November.
