S
M
T
W
T
F
S
26
79°
53°
27
80°
55°
28
82°
56°
29
83°
56°
30
83°
55°
31
84°
56°
1
80°
54°
2
80°
55°
3
81°
56°
4
82°
56°
5
80°
55°
6
83°
56°
7
84°
57°
8
85°
56°
9
86°
58°
10
85°
57°
11
84°
57°
12
83°
56°
13
81°
55°
14
79°
55°
15
79°
54°
16
80°
55°
17
78°
54°
18
78°
54°
19
79°
53°
20
79°
53°
21
84°
57°
22
86°
57°
23
85°
55°
24
86°
56°
25
83°
53°
26
84°
54°
27
85°
53°
28
84°
52°
29
83°
54°
30
81°
55°
31
85°
56°
1
86°
56°
2
85°
54°
3
82°
56°
4
80°
56°
5
85°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Larkspur
Larkspur's August 2026 forecast shows daily high temperatures ranging from 78° to 86°, with overnight lows between 52° and 58°. The average high for August is 82° 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 Larkspur. See also: September | October | November.
