S
M
T
W
T
F
S
31
74°
58°
1
73°
58°
2
74°
58°
3
75°
53°
4
80°
59°
5
82°
61°
6
83°
61°
7
84°
62°
8
85°
62°
9
85°
55°
10
83°
53°
11
77°
53°
12
77°
60°
13
80°
56°
14
81°
62°
15
85°
63°
16
78°
62°
17
85°
64°
18
86°
63°
19
84°
58°
20
85°
57°
21
85°
62°
22
84°
61°
23
81°
63°
24
84°
58°
25
81°
58°
26
84°
65°
27
86°
67°
28
89°
61°
29
89°
61°
30
85°
65°
1
81°
63°
2
87°
62°
3
88°
61°
4
83°
60°
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 73° to 89°, with overnight lows between 53° and 67°. The average high for June is 82° with an average low of 60°. 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.