S
M
T
W
T
F
S
31
77°
46°
1
75°
50°
2
77°
48°
3
81°
46°
4
82°
46°
5
86°
59°
6
86°
68°
7
88°
70°
8
86°
68°
9
82°
72°
10
88°
68°
11
86°
73°
12
81°
61°
13
82°
55°
14
82°
59°
15
70°
52°
16
77°
52°
17
81°
61°
18
79°
64°
19
79°
57°
20
81°
55°
21
79°
54°
22
79°
59°
23
80°
54°
24
81°
59°
25
84°
64°
26
78°
67°
27
80°
63°
28
86°
67°
29
89°
67°
30
92°
65°
1
91°
67°
2
89°
65°
3
85°
64°
4
85°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Adelphi
Adelphi's June 2026 forecast shows daily high temperatures ranging from 78° to 92°, with overnight lows between 54° and 67°. The average high for June is 85° with an average low of 63°. 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 Adelphi. See also: July | August | September.