S
M
T
W
T
F
S
26
64°
52°
27
71°
44°
28
64°
45°
29
72°
53°
30
74°
45°
1
69°
39°
2
63°
40°
3
67°
33°
4
79°
36°
5
81°
47°
6
74°
63°
7
65°
45°
8
72°
37°
9
77°
42°
10
85°
48°
11
62°
43°
12
74°
39°
13
80°
42°
14
66°
43°
15
76°
37°
16
85°
46°
17
92°
60°
18
94°
59°
19
94°
64°
20
94°
60°
21
91°
59°
22
59°
56°
23
57°
53°
24
71°
63°
25
76°
65°
26
78°
66°
27
81°
63°
28
84°
57°
29
79°
56°
30
70°
55°
31
67°
53°
1
74°
54°
2
77°
54°
3
78°
58°
4
80°
60°
5
81°
62°
6
80°
59°
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 67° to 84°, with overnight lows between 53° and 66°. The average high for May is 77° with an average low of 59°. 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.
