S
M
T
W
T
F
S
26
85°
68°
27
81°
60°
28
79°
62°
29
82°
65°
30
81°
62°
31
82°
63°
1
84°
65°
2
82°
60°
3
80°
59°
4
79°
60°
5
80°
63°
6
81°
61°
7
82°
60°
8
80°
60°
9
84°
63°
10
86°
64°
11
81°
65°
12
86°
66°
13
86°
66°
14
85°
65°
15
86°
62°
16
86°
58°
17
79°
60°
18
79°
64°
19
80°
59°
20
79°
57°
21
77°
58°
22
79°
60°
23
84°
62°
24
85°
64°
25
86°
60°
26
85°
57°
27
78°
56°
28
77°
56°
29
77°
59°
30
82°
63°
31
83°
64°
1
83°
62°
2
82°
58°
3
79°
60°
4
83°
62°
5
78°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grafton
Grafton's August 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 56° and 68°. The average high for August is 82° with an average low of 61°. 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 Grafton. See also: September | October | November.
