S
M
T
W
T
F
S
26
79°
50°
27
80°
52°
28
82°
54°
29
83°
54°
30
83°
53°
31
84°
54°
1
80°
51°
2
80°
52°
3
81°
53°
4
82°
52°
5
80°
53°
6
84°
54°
7
85°
54°
8
84°
53°
9
86°
55°
10
85°
54°
11
84°
54°
12
84°
53°
13
82°
52°
14
79°
52°
15
79°
51°
16
80°
51°
17
79°
50°
18
79°
50°
19
80°
49°
20
80°
49°
21
85°
52°
22
87°
54°
23
86°
53°
24
87°
52°
25
84°
49°
26
85°
50°
27
86°
49°
28
85°
48°
29
84°
50°
30
82°
51°
31
86°
52°
1
87°
52°
2
86°
50°
3
83°
52°
4
82°
52°
5
86°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sebastopol
Sebastopol's August 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 48° and 55°. The average high for August is 83° with an average low of 52°. 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 Sebastopol. See also: September | October | November.
