S
M
T
W
T
F
S
26
84°
59°
27
84°
61°
28
82°
60°
29
73°
60°
30
77°
57°
31
80°
58°
1
81°
57°
2
75°
57°
3
79°
58°
4
78°
62°
5
78°
60°
6
80°
54°
7
78°
59°
8
76°
58°
9
78°
58°
10
76°
55°
11
72°
53°
12
71°
52°
13
71°
58°
14
72°
58°
15
76°
57°
16
78°
58°
17
75°
58°
18
75°
57°
19
73°
57°
20
76°
56°
21
76°
52°
22
69°
50°
23
70°
51°
24
74°
56°
25
77°
56°
26
75°
53°
27
71°
51°
28
68°
48°
29
69°
48°
30
71°
55°
31
75°
55°
1
76°
54°
2
75°
53°
3
67°
51°
4
65°
43°
5
66°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Windsor
Windsor's August 2026 forecast shows daily high temperatures ranging from 65° to 84°, with overnight lows between 42° and 62°. The average high for August is 75° 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 Windsor. See also: September | October | November.