S
M
T
W
T
F
S
27
46°
32°
28
69°
28°
29
82°
30°
30
64°
30°
1
67°
25°
2
71°
47°
3
68°
46°
4
56°
50°
5
66°
45°
6
65°
55°
7
68°
51°
8
55°
46°
9
53°
46°
10
52°
38°
11
55°
31°
12
72°
29°
13
75°
32°
14
79°
37°
15
78°
53°
16
82°
48°
17
73°
54°
18
62°
47°
19
48°
41°
20
50°
40°
21
58°
44°
22
49°
41°
23
44°
39°
24
50°
41°
25
54°
42°
26
69°
37°
27
77°
32°
28
79°
36°
29
70°
45°
30
71°
51°
31
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bethlehem
Bethlehem's May 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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.
