S
M
T
W
T
F
S
31
72°
44°
1
69°
50°
2
77°
58°
3
81°
59°
4
85°
67°
5
91°
70°
6
90°
62°
7
75°
56°
8
71°
55°
9
73°
57°
10
81°
63°
11
81°
63°
12
80°
64°
13
81°
63°
14
82°
64°
15
84°
61°
16
75°
57°
17
76°
58°
18
77°
59°
19
80°
60°
20
82°
61°
21
80°
60°
22
78°
60°
23
78°
65°
24
79°
67°
25
81°
61°
26
79°
61°
27
82°
67°
28
85°
68°
29
83°
64°
30
81°
63°
1
80°
63°
2
80°
64°
3
82°
69°
4
87°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Old Westbury
Old Westbury's June 2026 forecast shows daily high temperatures ranging from 71° to 91°, with overnight lows between 55° and 70°. The average high for June is 81° with an average low of 62°. 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 Old Westbury. See also: July | August | September.
