S
M
T
W
T
F
S
26
84°
52°
27
89°
55°
28
92°
57°
29
94°
49°
30
88°
53°
31
87°
49°
1
86°
49°
2
87°
48°
3
86°
49°
4
84°
47°
5
85°
48°
6
84°
47°
7
84°
52°
8
86°
49°
9
86°
54°
10
89°
55°
11
90°
51°
12
90°
45°
13
83°
44°
14
80°
44°
15
80°
45°
16
81°
45°
17
82°
46°
18
85°
52°
19
90°
52°
20
90°
53°
21
91°
52°
22
89°
51°
23
90°
50°
24
87°
49°
25
82°
50°
26
81°
50°
27
86°
48°
28
82°
45°
29
83°
40°
30
79°
40°
31
79°
42°
1
80°
42°
2
83°
39°
3
77°
42°
4
79°
46°
5
86°
47°
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 77° to 94°, with overnight lows between 39° and 57°. The average high for August is 85° with an average low of 48°. 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.
