S
M
T
W
T
F
S
26
84°
59°
27
85°
63°
28
86°
63°
29
85°
55°
30
84°
63°
31
85°
64°
1
86°
63°
2
82°
64°
3
84°
56°
4
78°
55°
5
75°
56°
6
76°
61°
7
81°
62°
8
83°
61°
9
83°
59°
10
76°
61°
11
80°
61°
12
82°
54°
13
77°
60°
14
78°
54°
15
Hist. Avg.
78°
57°
16
Hist. Avg.
78°
57°
17
Hist. Avg.
78°
56°
18
Hist. Avg.
77°
56°
19
Hist. Avg.
77°
56°
20
Hist. Avg.
77°
56°
21
Hist. Avg.
77°
55°
22
Hist. Avg.
76°
55°
23
Hist. Avg.
76°
55°
24
Hist. Avg.
76°
55°
25
Hist. Avg.
76°
54°
26
Hist. Avg.
75°
54°
27
Hist. Avg.
75°
54°
28
Hist. Avg.
75°
53°
29
Hist. Avg.
74°
53°
30
Hist. Avg.
74°
53°
31
Hist. Avg.
74°
52°
1
Hist. Avg.
74°
52°
2
Hist. Avg.
73°
52°
3
Hist. Avg.
73°
52°
4
Hist. Avg.
73°
51°
5
Hist. Avg.
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Winchester
Winchester's August 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 54° and 64°. The average high for August is 82° with an average low of 60°. 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.