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
86°
60°
19
79°
60°
20
79°
54°
21
78°
59°
22
71°
57°
23
78°
54°
24
77°
57°
25
75°
55°
26
78°
59°
27
78°
60°
28
85°
63°
29
82°
61°
30
82°
62°
1
81°
60°
2
78°
58°
3
78°
62°
4
80°
59°
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 86°, with overnight lows between 54° and 63°. The average high for June is 79° with an average low of 59°. 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.