S
M
T
W
T
F
S
26
82°
61°
27
86°
63°
28
86°
66°
29
79°
64°
30
82°
63°
31
84°
57°
1
83°
68°
2
76°
69°
3
82°
63°
4
79°
66°
5
83°
67°
6
85°
68°
7
87°
70°
8
87°
68°
9
86°
70°
10
84°
67°
11
84°
65°
12
80°
63°
13
83°
62°
14
82°
64°
15
83°
61°
16
80°
61°
17
88°
68°
18
88°
67°
19
87°
68°
20
88°
67°
21
86°
65°
22
87°
67°
23
88°
68°
24
89°
68°
25
88°
67°
26
86°
67°
27
83°
66°
28
84°
66°
29
83°
65°
30
84°
66°
31
84°
65°
1
85°
62°
2
78°
58°
3
77°
58°
4
77°
59°
5
78°
57°
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 76° to 89°, with overnight lows between 57° and 70°. The average high for August is 84° with an average low of 65°. 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.
