S
M
T
W
T
F
S
31
76°
41°
1
76°
52°
2
77°
44°
3
84°
50°
4
87°
50°
5
91°
54°
6
90°
60°
7
83°
62°
8
77°
57°
9
83°
50°
10
83°
66°
11
93°
71°
12
92°
70°
13
88°
64°
14
90°
60°
15
75°
58°
16
76°
49°
17
82°
51°
18
87°
71°
19
82°
63°
20
83°
62°
21
84°
55°
22
73°
62°
23
75°
61°
24
82°
54°
25
82°
62°
26
80°
63°
27
71°
61°
28
82°
61°
29
84°
64°
30
87°
66°
1
91°
68°
2
92°
66°
3
91°
65°
4
90°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Lehigh Valley
Lehigh Valley's June 2026 forecast shows daily high temperatures ranging from 71° to 92°, with overnight lows between 61° and 68°. The average high for June is 85° with an average low of 64°. 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 Lehigh Valley. See also: July | August | September.