S
M
T
W
T
F
S
31
73°
64°
1
82°
64°
2
79°
59°
3
78°
54°
4
82°
58°
5
84°
62°
6
83°
67°
7
83°
68°
8
83°
67°
9
82°
69°
10
83°
67°
11
86°
69°
12
86°
68°
13
88°
69°
14
85°
68°
15
86°
65°
16
85°
68°
17
81°
67°
18
81°
68°
19
83°
68°
20
83°
67°
21
86°
69°
22
86°
69°
23
87°
68°
24
83°
66°
25
84°
64°
26
86°
65°
27
87°
68°
28
84°
69°
29
83°
69°
30
85°
66°
1
83°
65°
2
84°
68°
3
83°
69°
4
81°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Alpharetta
Alpharetta's June 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 54° and 69°. The average high for June is 84° with an average low of 66°. 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 Alpharetta. See also: July | August | September.