S
M
T
W
T
F
S
26
92°
73°
27
93°
73°
28
94°
74°
29
94°
72°
30
93°
73°
31
93°
72°
1
91°
71°
2
85°
68°
3
84°
70°
4
84°
70°
5
85°
69°
6
86°
71°
7
88°
71°
8
88°
70°
9
89°
71°
10
90°
71°
11
87°
70°
12
88°
70°
13
89°
71°
14
94°
70°
15
93°
70°
16
92°
69°
17
91°
68°
18
87°
69°
19
91°
62°
20
84°
61°
21
82°
60°
22
82°
61°
23
83°
60°
24
84°
61°
25
84°
67°
26
86°
63°
27
90°
67°
28
90°
67°
29
92°
66°
30
92°
66°
31
89°
65°
1
82°
63°
2
84°
59°
3
80°
58°
4
81°
62°
5
83°
65°
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 80° to 94°, with overnight lows between 58° and 74°. The average high for August is 88° with an average low of 67°. 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.
