S
M
T
W
T
F
S
31
N/A
1
86°
65°
2
78°
56°
3
79°
54°
4
80°
57°
5
84°
64°
6
86°
65°
7
86°
66°
8
85°
68°
9
85°
69°
10
86°
69°
11
84°
68°
12
85°
67°
13
85°
67°
14
84°
66°
15
85°
67°
16
87°
67°
17
84°
66°
18
84°
67°
19
85°
67°
20
85°
68°
21
88°
68°
22
89°
67°
23
89°
68°
24
85°
66°
25
86°
64°
26
88°
65°
27
89°
68°
28
86°
69°
29
85°
68°
30
87°
66°
1
85°
64°
2
86°
68°
3
85°
69°
4
84°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Bethlehem
Bethlehem's June 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 54° and 69°. The average high for June is 85° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Bethlehem. See also: July | August | September.