S
M
T
W
T
F
S
26
85°
71°
27
85°
64°
28
86°
65°
29
87°
70°
30
92°
64°
31
89°
68°
1
93°
65°
2
87°
65°
3
86°
64°
4
83°
63°
5
84°
64°
6
84°
63°
7
85°
63°
8
83°
66°
9
84°
65°
10
87°
67°
11
88°
69°
12
84°
70°
13
91°
69°
14
91°
61°
15
87°
62°
16
82°
67°
17
84°
69°
18
88°
62°
19
88°
62°
20
83°
66°
21
86°
66°
22
89°
65°
23
86°
66°
24
87°
67°
25
86°
66°
26
89°
63°
27
82°
65°
28
85°
65°
29
84°
66°
30
86°
66°
31
88°
65°
1
85°
64°
2
84°
65°
3
82°
57°
4
82°
57°
5
78°
56°
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 78° to 93°, with overnight lows between 56° and 71°. The average high for August is 86° 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.
