S
M
T
W
T
F
S
31
76°
41°
1
76°
52°
2
76°
54°
3
82°
54°
4
88°
58°
5
90°
63°
6
90°
64°
7
79°
57°
8
68°
51°
9
74°
53°
10
73°
58°
11
81°
59°
12
81°
58°
13
83°
61°
14
81°
60°
15
82°
56°
16
72°
52°
17
73°
53°
18
75°
53°
19
75°
54°
20
78°
54°
21
77°
58°
22
76°
57°
23
75°
61°
24
76°
60°
25
77°
55°
26
76°
56°
27
82°
62°
28
81°
61°
29
78°
57°
30
77°
56°
1
77°
56°
2
78°
59°
3
80°
63°
4
83°
63°
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 68° to 90°, with overnight lows between 51° and 64°. The average high for June is 79° with an average low of 57°. 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.