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
84°
55°
15
86°
59°
16
89°
61°
17
79°
59°
18
75°
52°
19
53°
35°
20
50°
29°
21
55°
24°
22
59°
44°
23
76°
40°
24
71°
44°
25
48°
40°
26
58°
39°
27
68°
42°
28
59°
45°
29
64°
45°
30
63°
44°
1
64°
43°
2
56°
39°
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 48° to 71°, with overnight lows between 39° and 45°. The average high for April is 61° with an average low of 42°. 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.
