S
M
T
W
T
F
S
26
86°
56°
27
86°
64°
28
80°
63°
29
82°
63°
30
81°
66°
31
87°
61°
1
87°
62°
2
84°
73°
3
85°
64°
4
85°
56°
5
84°
66°
6
91°
73°
7
92°
69°
8
86°
68°
9
89°
68°
10
89°
70°
11
87°
67°
12
84°
64°
13
87°
66°
14
83°
59°
15
80°
61°
16
79°
64°
17
80°
63°
18
79°
61°
19
82°
62°
20
81°
60°
21
83°
63°
22
86°
63°
23
83°
62°
24
79°
60°
25
82°
61°
26
85°
63°
27
86°
65°
28
87°
63°
29
85°
59°
30
78°
57°
31
77°
57°
1
79°
61°
2
79°
60°
3
78°
59°
4
78°
63°
5
79°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bethlehem
Bethlehem's August 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 57° and 70°. The average high for August is 82° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Bethlehem. See also: September | October | November.
