S
M
T
W
T
F
S
26
80°
58°
27
82°
56°
28
88°
58°
29
87°
57°
30
87°
57°
31
90°
55°
1
92°
56°
2
94°
58°
3
93°
56°
4
86°
56°
5
86°
55°
6
89°
54°
7
88°
56°
8
82°
55°
9
89°
54°
10
83°
53°
11
80°
52°
12
81°
56°
13
72°
56°
14
72°
60°
15
80°
55°
16
81°
56°
17
80°
57°
18
84°
55°
19
84°
56°
20
82°
53°
21
82°
56°
22
85°
57°
23
91°
55°
24
82°
56°
25
85°
58°
26
90°
52°
27
88°
60°
28
76°
56°
29
83°
51°
30
79°
50°
31
69°
52°
1
73°
60°
2
77°
57°
3
70°
57°
4
77°
55°
5
82°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in San Rafael
San Rafael'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 San Rafael. See also: September | October | November.
