S
M
T
W
T
F
S
26
79°
46°
27
85°
47°
28
84°
63°
29
71°
65°
30
76°
62°
31
82°
58°
1
86°
68°
2
85°
71°
3
79°
66°
4
85°
65°
5
82°
68°
6
86°
70°
7
87°
69°
8
88°
67°
9
87°
66°
10
85°
64°
11
83°
63°
12
79°
61°
13
78°
59°
14
78°
62°
15
80°
61°
16
78°
60°
17
78°
64°
18
78°
61°
19
79°
64°
20
78°
62°
21
78°
60°
22
77°
63°
23
81°
65°
24
83°
65°
25
82°
64°
26
77°
63°
27
76°
63°
28
76°
64°
29
78°
64°
30
81°
63°
31
80°
62°
1
81°
58°
2
74°
56°
3
73°
58°
4
73°
57°
5
74°
54°
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 73° to 88°, with overnight lows between 54° and 71°. The average high for August is 80° with an average low of 63°. 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.
