S
M
T
W
T
F
S
26
91°
66°
27
84°
68°
28
88°
64°
29
93°
70°
30
84°
68°
31
82°
61°
1
86°
62°
2
94°
66°
3
77°
52°
4
76°
49°
5
83°
59°
6
85°
61°
7
83°
57°
8
82°
57°
9
80°
58°
10
79°
57°
11
80°
60°
12
79°
57°
13
81°
59°
14
79°
60°
15
84°
65°
16
81°
64°
17
75°
64°
18
78°
63°
19
82°
64°
20
84°
65°
21
84°
66°
22
83°
64°
23
84°
64°
24
84°
63°
25
83°
60°
26
72°
58°
27
74°
63°
28
79°
62°
29
82°
64°
30
84°
63°
31
82°
62°
1
81°
61°
2
82°
63°
3
83°
62°
4
81°
61°
5
79°
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 72° to 94°, with overnight lows between 49° and 66°. The average high for August is 81° 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.
