S
M
T
W
T
F
S
26
79°
63°
27
80°
64°
28
80°
64°
29
76°
63°
30
74°
64°
31
80°
64°
1
79°
63°
2
80°
62°
3
83°
64°
4
82°
64°
5
81°
63°
6
76°
61°
7
75°
63°
8
76°
57°
9
75°
58°
10
75°
56°
11
74°
63°
12
79°
63°
13
81°
62°
14
79°
56°
15
74°
55°
16
74°
57°
17
77°
62°
18
73°
56°
19
75°
55°
20
76°
55°
21
76°
56°
22
78°
61°
23
80°
57°
24
80°
55°
25
78°
55°
26
79°
59°
27
78°
60°
28
75°
57°
29
78°
62°
30
79°
56°
31
77°
51°
1
72°
50°
2
70°
52°
3
70°
50°
4
71°
51°
5
69°
50°
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 69° to 83°, with overnight lows between 50° and 64°. The average high for August is 77° 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.
