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
78°
55°
18
74°
48°
19
55°
36°
20
49°
26°
21
53°
37°
22
66°
40°
23
69°
42°
24
73°
47°
25
65°
44°
26
59°
42°
27
56°
38°
28
57°
41°
29
58°
40°
30
61°
42°
1
61°
39°
2
63°
40°
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 49° to 78°, with overnight lows between 26° and 55°. The average high for April is 62° with an average low of 41°. 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.
