S
M
T
W
T
F
S
26
88°
68°
27
88°
68°
28
87°
67°
29
85°
68°
30
83°
68°
31
88°
67°
1
87°
68°
2
88°
68°
3
88°
67°
4
89°
68°
5
88°
66°
6
82°
67°
7
85°
62°
8
82°
61°
9
82°
61°
10
83°
60°
11
82°
66°
12
86°
66°
13
88°
65°
14
87°
60°
15
82°
60°
16
81°
64°
17
83°
66°
18
82°
60°
19
83°
60°
20
82°
59°
21
84°
60°
22
85°
59°
23
85°
58°
24
84°
58°
25
84°
60°
26
85°
63°
27
86°
64°
28
84°
63°
29
85°
65°
30
86°
61°
31
84°
56°
1
80°
55°
2
78°
56°
3
78°
56°
4
79°
55°
5
77°
55°
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 55° and 68°. The average high for August is 84° 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.
