S
M
T
W
T
F
S
26
91°
69°
27
92°
70°
28
93°
70°
29
93°
69°
30
92°
70°
31
92°
71°
1
93°
70°
2
94°
71°
3
94°
72°
4
93°
71°
5
94°
71°
6
94°
72°
7
93°
70°
8
92°
69°
9
91°
69°
10
91°
68°
11
93°
70°
12
93°
70°
13
92°
69°
14
94°
70°
15
93°
69°
16
91°
67°
17
91°
65°
18
89°
66°
19
91°
63°
20
87°
65°
21
90°
66°
22
89°
65°
23
85°
59°
24
83°
59°
25
82°
58°
26
82°
57°
27
83°
57°
28
82°
56°
29
82°
57°
30
84°
63°
31
88°
63°
1
85°
62°
2
88°
63°
3
88°
62°
4
87°
62°
5
84°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Sullivan
West Sullivan's August 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 56° and 72°. The average high for August is 89° 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 West Sullivan. See also: September | October | November.
