S
M
T
W
T
F
S
26
77°
52°
27
81°
52°
28
86°
54°
29
86°
55°
30
88°
54°
31
93°
52°
1
95°
54°
2
99°
54°
3
95°
57°
4
90°
54°
5
86°
55°
6
86°
55°
7
88°
55°
8
86°
55°
9
91°
55°
10
88°
52°
11
86°
52°
12
84°
55°
13
77°
57°
14
75°
59°
15
81°
57°
16
86°
57°
17
86°
55°
18
86°
57°
19
84°
55°
20
84°
55°
21
82°
55°
22
90°
52°
23
95°
52°
24
86°
55°
25
90°
55°
26
93°
52°
27
95°
59°
28
73°
54°
29
81°
50°
30
82°
50°
31
72°
50°
1
73°
59°
2
77°
57°
3
68°
59°
4
77°
52°
5
81°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sonoma Raceway
Sonoma Raceway's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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 Raceway. See also: September | October | November.