S
M
T
W
T
F
S
29
57°
23°
30
71°
36°
31
80°
55°
1
77°
50°
2
50°
40°
3
61°
40°
4
79°
43°
5
56°
42°
6
54°
38°
7
50°
29°
8
52°
24°
9
60°
27°
10
72°
41°
11
63°
42°
12
65°
34°
13
80°
50°
14
85°
60°
15
87°
62°
16
88°
60°
17
76°
55°
18
77°
55°
19
60°
35°
20
54°
30°
21
57°
35°
22
65°
44°
23
65°
43°
24
66°
45°
25
65°
42°
26
64°
43°
27
62°
41°
28
60°
41°
29
61°
39°
30
66°
37°
1
61°
37°
2
61°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lehigh Valley
Lehigh Valley's April 2026 forecast shows daily high temperatures ranging from 54° to 88°, with overnight lows between 30° and 62°. The average high for April is 67° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Lehigh Valley. See also: May | June | July.
