S
M
T
W
T
F
S
29
64°
29°
30
69°
56°
31
79°
60°
1
68°
47°
2
85°
68°
3
80°
61°
4
84°
49°
5
58°
33°
6
56°
34°
7
48°
23°
8
60°
36°
9
73°
45°
10
66°
44°
11
74°
49°
12
73°
51°
13
69°
46°
14
65°
43°
15
66°
38°
16
69°
34°
17
58°
32°
18
59°
34°
19
64°
45°
20
71°
46°
21
73°
47°
22
73°
47°
23
72°
48°
24
74°
48°
25
75°
49°
26
75°
40°
27
67°
37°
28
60°
37°
29
62°
47°
30
64°
43°
1
63°
39°
2
64°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Bethlehem
Bethlehem's April 2026 forecast shows daily high temperatures ranging from 48° to 85°, with overnight lows between 23° and 68°. The average high for April is 68° with an average low of 43°. 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 Bethlehem. See also: May | June | July.