S
M
T
W
T
F
S
26
92°
67°
27
94°
67°
28
91°
64°
29
84°
62°
30
83°
62°
31
86°
63°
1
91°
65°
2
93°
65°
3
87°
55°
4
84°
56°
5
88°
63°
6
93°
64°
7
88°
59°
8
85°
56°
9
84°
59°
10
89°
62°
11
92°
60°
12
92°
64°
13
91°
64°
14
93°
65°
15
92°
63°
16
91°
62°
17
92°
59°
18
90°
58°
19
82°
55°
20
81°
56°
21
80°
52°
22
80°
51°
23
79°
53°
24
83°
57°
25
87°
58°
26
89°
59°
27
88°
59°
28
87°
60°
29
88°
59°
30
87°
58°
31
87°
59°
1
86°
58°
2
86°
56°
3
85°
56°
4
83°
54°
5
80°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Winchester
Winchester's August 2026 forecast shows daily high temperatures ranging from 79° to 94°, with overnight lows between 51° and 67°. The average high for August is 87° with an average low of 59°. 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 Winchester. See also: September | October | November.
