S
M
T
W
T
F
S
26
82°
60°
27
85°
66°
28
79°
67°
29
78°
65°
30
82°
59°
31
85°
62°
1
82°
69°
2
80°
68°
3
75°
58°
4
81°
52°
5
86°
58°
6
85°
65°
7
81°
68°
8
85°
68°
9
82°
61°
10
83°
67°
11
75°
65°
12
75°
63°
13
77°
63°
14
81°
65°
15
79°
62°
16
83°
71°
17
78°
62°
18
79°
61°
19
79°
65°
20
79°
59°
21
82°
53°
22
81°
60°
23
73°
60°
24
73°
54°
25
77°
56°
26
81°
61°
27
80°
60°
28
78°
56°
29
81°
63°
30
84°
67°
31
78°
59°
1
77°
57°
2
74°
57°
3
74°
58°
4
76°
58°
5
77°
58°
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 73° to 84°, with overnight lows between 54° and 67°. The average high for August is 78° with an average low of 59°. 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.
