S
M
T
W
T
F
S
31
76°
41°
1
76°
52°
2
77°
44°
3
84°
50°
4
87°
55°
5
91°
63°
6
90°
64°
7
86°
59°
8
77°
51°
9
80°
53°
10
88°
58°
11
86°
58°
12
88°
63°
13
89°
64°
14
87°
62°
15
84°
61°
16
81°
59°
17
83°
56°
18
76°
60°
19
82°
61°
20
80°
58°
21
82°
54°
22
76°
53°
23
75°
54°
24
76°
60°
25
83°
63°
26
84°
60°
27
81°
56°
28
77°
56°
29
78°
57°
30
76°
55°
1
79°
57°
2
78°
56°
3
82°
59°
4
84°
62°
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 75° to 91°, with overnight lows between 51° and 64°. The average high for June is 82° with an average low of 58°. 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.