S
M
T
W
T
F
S
26
79°
59°
27
76°
58°
28
76°
58°
29
75°
57°
30
70°
56°
31
72°
57°
1
76°
57°
2
70°
56°
3
76°
57°
4
77°
56°
5
69°
56°
6
69°
54°
7
72°
57°
8
78°
58°
9
78°
57°
10
73°
56°
11
71°
52°
12
68°
53°
13
68°
51°
14
70°
56°
15
76°
56°
16
76°
57°
17
67°
49°
18
73°
49°
19
77°
50°
20
76°
53°
21
77°
55°
22
76°
51°
23
71°
43°
24
67°
49°
25
69°
54°
26
70°
53°
27
74°
47°
28
65°
53°
29
73°
51°
30
68°
51°
31
66°
43°
1
64°
48°
2
69°
49°
3
73°
49°
4
73°
43°
5
63°
41°
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 63° to 79°, with overnight lows between 41° and 59°. The average high for August is 72° with an average low of 53°. 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.
