S
M
T
W
T
F
S
26
78°
65°
27
79°
65°
28
81°
64°
29
81°
65°
30
80°
65°
31
81°
64°
1
77°
65°
2
78°
66°
3
83°
67°
4
82°
65°
5
78°
65°
6
79°
64°
7
82°
65°
8
81°
60°
9
76°
58°
10
76°
58°
11
77°
64°
12
76°
64°
13
79°
65°
14
81°
65°
15
80°
64°
16
78°
63°
17
78°
56°
18
79°
56°
19
83°
61°
20
84°
62°
21
80°
63°
22
81°
62°
23
84°
62°
24
82°
61°
25
77°
61°
26
76°
57°
27
76°
57°
28
75°
60°
29
76°
59°
30
79°
60°
31
82°
61°
1
82°
60°
2
81°
61°
3
83°
54°
4
76°
52°
5
75°
56°
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 75° to 84°, with overnight lows between 52° and 67°. The average high for August is 79° with an average low of 62°. 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.
