S
M
T
W
T
F
S
26
86°
69°
27
86°
69°
28
86°
68°
29
85°
68°
30
85°
66°
31
79°
64°
1
78°
62°
2
78°
62°
3
79°
65°
4
79°
63°
5
80°
63°
6
80°
65°
7
82°
67°
8
79°
67°
9
78°
65°
10
84°
60°
11
81°
61°
12
84°
64°
13
83°
65°
14
84°
66°
15
85°
65°
16
85°
66°
17
86°
66°
18
85°
65°
19
84°
61°
20
81°
59°
21
78°
58°
22
78°
57°
23
77°
57°
24
77°
58°
25
80°
58°
26
83°
57°
27
83°
58°
28
80°
63°
29
78°
62°
30
76°
60°
31
82°
63°
1
82°
55°
2
81°
56°
3
74°
55°
4
76°
56°
5
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Westchester
Westchester's August 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 55° and 69°. The average high for August is 81° with an average low of 62°. 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 Westchester. See also: September | October | November.
