S
M
T
W
T
F
S
26
81°
59°
27
70°
54°
28
64°
54°
29
82°
59°
30
73°
59°
1
64°
55°
2
70°
50°
3
70°
45°
4
77°
43°
5
79°
52°
6
81°
63°
7
72°
54°
8
70°
50°
9
68°
55°
10
81°
59°
11
79°
57°
12
70°
57°
13
79°
52°
14
73°
54°
15
75°
45°
16
85°
63°
17
86°
63°
18
88°
61°
19
86°
65°
20
87°
67°
21
87°
65°
22
79°
62°
23
78°
63°
24
80°
61°
25
80°
64°
26
84°
64°
27
83°
63°
28
81°
64°
29
82°
60°
30
86°
63°
31
85°
62°
1
86°
64°
2
87°
65°
3
83°
64°
4
81°
63°
5
82°
61°
6
82°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bethlehem
Bethlehem's May 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 60° and 67°. The average high for May is 84° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Bethlehem. See also: June | July | August.
