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
57°
34°
10
69°
48°
11
64°
38°
12
62°
50°
13
77°
58°
14
86°
63°
15
86°
61°
16
79°
53°
17
71°
44°
18
64°
47°
19
66°
48°
20
67°
49°
21
73°
42°
22
70°
42°
23
60°
40°
24
62°
47°
25
61°
47°
26
60°
45°
27
61°
42°
28
62°
44°
29
62°
42°
30
63°
41°
1
64°
51°
2
73°
50°
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 57° to 86°, with overnight lows between 34° and 63°. The average high for April is 67° with an average low of 47°. 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.
