S
M
T
W
T
F
S
26
81°
58°
27
84°
63°
28
80°
65°
29
81°
66°
30
78°
64°
31
84°
64°
1
86°
67°
2
81°
74°
3
81°
68°
4
82°
69°
5
83°
73°
6
86°
76°
7
90°
70°
8
88°
69°
9
88°
70°
10
90°
67°
11
85°
66°
12
84°
64°
13
83°
65°
14
84°
64°
15
82°
65°
16
80°
61°
17
86°
64°
18
84°
62°
19
83°
68°
20
85°
65°
21
83°
61°
22
82°
65°
23
86°
68°
24
88°
68°
25
87°
66°
26
85°
67°
27
79°
66°
28
79°
67°
29
83°
65°
30
84°
66°
31
84°
66°
1
83°
61°
2
77°
59°
3
75°
59°
4
76°
58°
5
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Locust Valley
Locust Valley's August 2026 forecast shows daily high temperatures ranging from 75° to 90°, with overnight lows between 58° and 76°. The average high for August is 83° with an average low of 66°. 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 Locust Valley. See also: September | October | November.
