S
M
T
W
T
F
S
31
66°
41°
1
62°
39°
2
73°
48°
3
78°
55°
4
85°
57°
5
87°
62°
6
84°
60°
7
78°
57°
8
71°
55°
9
75°
58°
10
74°
56°
11
76°
59°
12
81°
58°
13
77°
59°
14
80°
55°
15
72°
52°
16
71°
52°
17
71°
53°
18
72°
54°
19
74°
55°
20
73°
54°
21
73°
54°
22
74°
54°
23
73°
55°
24
73°
60°
25
74°
57°
26
75°
55°
27
74°
62°
28
79°
61°
29
75°
58°
30
76°
57°
1
74°
56°
2
75°
59°
3
76°
62°
4
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Grafton
Grafton's June 2026 forecast shows daily high temperatures ranging from 62° to 87°, with overnight lows between 39° and 63°. The average high for June is 75° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Grafton. See also: July | August | September.