S
M
T
W
T
F
S
26
74°
54°
27
71°
54°
28
70°
55°
29
71°
54°
30
70°
55°
31
71°
54°
1
70°
55°
2
72°
52°
3
70°
57°
4
72°
58°
5
74°
54°
6
72°
55°
7
71°
55°
8
72°
56°
9
73°
54°
10
73°
55°
11
72°
55°
12
73°
54°
13
71°
54°
14
70°
53°
15
69°
54°
16
70°
55°
17
71°
55°
18
70°
56°
19
71°
56°
20
69°
55°
21
69°
56°
22
71°
55°
23
70°
56°
24
71°
55°
25
70°
55°
26
68°
53°
27
69°
54°
28
71°
55°
29
70°
52°
30
68°
54°
31
67°
52°
1
68°
53°
2
71°
56°
3
Hist. Avg.
68°
54°
4
Hist. Avg.
68°
54°
5
Hist. Avg.
68°
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 67° to 74°, with overnight lows between 52° and 58°. The average high for August is 71° with an average low of 55°. 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.
